Won't Indesign Multiply Blending Option work on objects with the same color?

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











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Multiply Blending Option is applied to all of these objects.
in Fig.A each object has different colors. And in Fig. B, those are all the same color. You can see that in Fig. B the multiply option doesn't take any effects.



enter image description hereenter image description here



My question, is this a normal thing Indesign does? Or is this some kind of a bug? Thanks beforehand.







share|improve this question
























    up vote
    3
    down vote

    favorite
    1












    Multiply Blending Option is applied to all of these objects.
    in Fig.A each object has different colors. And in Fig. B, those are all the same color. You can see that in Fig. B the multiply option doesn't take any effects.



    enter image description hereenter image description here



    My question, is this a normal thing Indesign does? Or is this some kind of a bug? Thanks beforehand.







    share|improve this question






















      up vote
      3
      down vote

      favorite
      1









      up vote
      3
      down vote

      favorite
      1






      1





      Multiply Blending Option is applied to all of these objects.
      in Fig.A each object has different colors. And in Fig. B, those are all the same color. You can see that in Fig. B the multiply option doesn't take any effects.



      enter image description hereenter image description here



      My question, is this a normal thing Indesign does? Or is this some kind of a bug? Thanks beforehand.







      share|improve this question












      Multiply Blending Option is applied to all of these objects.
      in Fig.A each object has different colors. And in Fig. B, those are all the same color. You can see that in Fig. B the multiply option doesn't take any effects.



      enter image description hereenter image description here



      My question, is this a normal thing Indesign does? Or is this some kind of a bug? Thanks beforehand.









      share|improve this question











      share|improve this question




      share|improve this question










      asked Aug 23 at 10:24









      Chen

      204




      204




















          3 Answers
          3






          active

          oldest

          votes

















          up vote
          6
          down vote



          accepted










          This is the expected behaviour for 'Multiply' in CMYK modus.



          You might be expecting a darker cyan, but that's because you are probably used to the Multiply functionality in RGB mode: the more colour you add, the closer you approach black.



          In CMYK that is not the case. What CMYK Multiply does, is add more of each ink used until those are at 100%. It will never, though, add any ink not present.



          So 100% cyan and 0% of any other ink will never get any darker than 100% cyan. If you'd add 5% magenta, you'd have to Multiply a lot of objects to reach it, but you'd eventually end up with C100 M100 Y0 K0.



          Don't forget that 'Multiply', as any blending mode, functions by manipulating the 'numbers' of your colours. Colours, their numbers, and how they work are fundamentally different in each colour mode.






          share|improve this answer




















          • Hey, you're right. It works when I convert the color profile to RGB. I'm used to working in PS & AI and no matter in which color profile I worked on I never bumped into this kind of issue. So this is new to me, honestly. Thank you very much for your fast response :)
            – Chen
            Aug 23 at 10:48











          • @Chen Not only in InDesign, the same also happens in Photoshop in CMYK mode, with two shape layers both set to 100% cyan, and the top layer set to multiply. Multiply can't get you any more cyan than 100%, because it's physically impossible to get more than 100% ink. See screenshot.
            – Billy Kerr
            Aug 23 at 10:57










          • @BillyKerr Thank you Billy. I think Photoshop kind of automatically tweaks the CMYK value in a way that makes the objects look like they are in multiply mode. Since I never bothered to pay attention to the color value.
            – Chen
            Aug 23 at 11:06






          • 1




            100% * 100% = 1.00 * 1.00 = 1.00 = 100%
            – joojaa
            Aug 23 at 12:17










          • @joojaa that's a bad joke-true in math, but still a bad joke.
            – user287001
            Aug 23 at 21:53


















          up vote
          2
          down vote













          Indesign has a different behavior with the Multiply mode over spot colors or pure inks. The solution is changing the CMYK values as shown on the squares at the right:



          enter image description here



          InDesign Secrets has an explanation and solution about it:




          When you take two process colors (such as magenta or cyan) and overlap them—multiply them, overprint them, whatever you want to call it—the area of overlap gets darker than either of the individual inks. This happens both onscreen and in the printed output.



          If you overlap spot colors, some areas get darker and bolder onscreen. But the printed output may be a different situation. Spot colors are more opaque than process colors, and in the case of this particular job, the designer actually overlapped a single spot ink color on itself. The onscreen result was a lovely interaction among the objects. But in the real world, an orange ink overprinting on top of the same orange ink simply cannot result in a darker orange ink







          share|improve this answer




















          • Thank you for your response. I'll try to tweak the CMYK value a bit so that it will look like the objects have multiply effect. :)
            – Chen
            Aug 23 at 10:55

















          up vote
          2
          down vote













          Adobe is quiet about the actual formulas of their blending modes. Multiply in CMYK mode fortunately isn't especially complex. It's calculated per channel, for ex. cyan numbers do not affect the result in magenta channel.



          If we have multiple layers and the top layer has blending mode multiply, the resulted image below the top layer is calculated at first. Then the top layer is taken along with th the following formula:



          the resulted CMYK value of all layers = (1-X)*M + X ,where



          X = the bigger one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



          M = the smaller one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



          All CMYK values are presented in scale 0...1, where 1 means 100%



          For example, if the top layer has cyan=50% and the rest of the image has cyan value=30%, the resulted cyan = (1-0,5)*0,3 + 0,5 = 0,65



          that formula cannot give bigger cmyk values than 1 (=100%) which is already presented without math by others. Your 100% cyan and another 100% cyan gives cyan = (1-1)*1+1 = 1



          Unfortunately I cannot give any established source for this formula, it's calculated from few samples by assuming it has nothing else than a sum and product weighted.






          share|improve this answer




















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            3 Answers
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            3 Answers
            3






            active

            oldest

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            active

            oldest

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            active

            oldest

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            up vote
            6
            down vote



            accepted










            This is the expected behaviour for 'Multiply' in CMYK modus.



            You might be expecting a darker cyan, but that's because you are probably used to the Multiply functionality in RGB mode: the more colour you add, the closer you approach black.



            In CMYK that is not the case. What CMYK Multiply does, is add more of each ink used until those are at 100%. It will never, though, add any ink not present.



            So 100% cyan and 0% of any other ink will never get any darker than 100% cyan. If you'd add 5% magenta, you'd have to Multiply a lot of objects to reach it, but you'd eventually end up with C100 M100 Y0 K0.



            Don't forget that 'Multiply', as any blending mode, functions by manipulating the 'numbers' of your colours. Colours, their numbers, and how they work are fundamentally different in each colour mode.






            share|improve this answer




















            • Hey, you're right. It works when I convert the color profile to RGB. I'm used to working in PS & AI and no matter in which color profile I worked on I never bumped into this kind of issue. So this is new to me, honestly. Thank you very much for your fast response :)
              – Chen
              Aug 23 at 10:48











            • @Chen Not only in InDesign, the same also happens in Photoshop in CMYK mode, with two shape layers both set to 100% cyan, and the top layer set to multiply. Multiply can't get you any more cyan than 100%, because it's physically impossible to get more than 100% ink. See screenshot.
              – Billy Kerr
              Aug 23 at 10:57










            • @BillyKerr Thank you Billy. I think Photoshop kind of automatically tweaks the CMYK value in a way that makes the objects look like they are in multiply mode. Since I never bothered to pay attention to the color value.
              – Chen
              Aug 23 at 11:06






            • 1




              100% * 100% = 1.00 * 1.00 = 1.00 = 100%
              – joojaa
              Aug 23 at 12:17










            • @joojaa that's a bad joke-true in math, but still a bad joke.
              – user287001
              Aug 23 at 21:53















            up vote
            6
            down vote



            accepted










            This is the expected behaviour for 'Multiply' in CMYK modus.



            You might be expecting a darker cyan, but that's because you are probably used to the Multiply functionality in RGB mode: the more colour you add, the closer you approach black.



            In CMYK that is not the case. What CMYK Multiply does, is add more of each ink used until those are at 100%. It will never, though, add any ink not present.



            So 100% cyan and 0% of any other ink will never get any darker than 100% cyan. If you'd add 5% magenta, you'd have to Multiply a lot of objects to reach it, but you'd eventually end up with C100 M100 Y0 K0.



            Don't forget that 'Multiply', as any blending mode, functions by manipulating the 'numbers' of your colours. Colours, their numbers, and how they work are fundamentally different in each colour mode.






            share|improve this answer




















            • Hey, you're right. It works when I convert the color profile to RGB. I'm used to working in PS & AI and no matter in which color profile I worked on I never bumped into this kind of issue. So this is new to me, honestly. Thank you very much for your fast response :)
              – Chen
              Aug 23 at 10:48











            • @Chen Not only in InDesign, the same also happens in Photoshop in CMYK mode, with two shape layers both set to 100% cyan, and the top layer set to multiply. Multiply can't get you any more cyan than 100%, because it's physically impossible to get more than 100% ink. See screenshot.
              – Billy Kerr
              Aug 23 at 10:57










            • @BillyKerr Thank you Billy. I think Photoshop kind of automatically tweaks the CMYK value in a way that makes the objects look like they are in multiply mode. Since I never bothered to pay attention to the color value.
              – Chen
              Aug 23 at 11:06






            • 1




              100% * 100% = 1.00 * 1.00 = 1.00 = 100%
              – joojaa
              Aug 23 at 12:17










            • @joojaa that's a bad joke-true in math, but still a bad joke.
              – user287001
              Aug 23 at 21:53













            up vote
            6
            down vote



            accepted







            up vote
            6
            down vote



            accepted






            This is the expected behaviour for 'Multiply' in CMYK modus.



            You might be expecting a darker cyan, but that's because you are probably used to the Multiply functionality in RGB mode: the more colour you add, the closer you approach black.



            In CMYK that is not the case. What CMYK Multiply does, is add more of each ink used until those are at 100%. It will never, though, add any ink not present.



            So 100% cyan and 0% of any other ink will never get any darker than 100% cyan. If you'd add 5% magenta, you'd have to Multiply a lot of objects to reach it, but you'd eventually end up with C100 M100 Y0 K0.



            Don't forget that 'Multiply', as any blending mode, functions by manipulating the 'numbers' of your colours. Colours, their numbers, and how they work are fundamentally different in each colour mode.






            share|improve this answer












            This is the expected behaviour for 'Multiply' in CMYK modus.



            You might be expecting a darker cyan, but that's because you are probably used to the Multiply functionality in RGB mode: the more colour you add, the closer you approach black.



            In CMYK that is not the case. What CMYK Multiply does, is add more of each ink used until those are at 100%. It will never, though, add any ink not present.



            So 100% cyan and 0% of any other ink will never get any darker than 100% cyan. If you'd add 5% magenta, you'd have to Multiply a lot of objects to reach it, but you'd eventually end up with C100 M100 Y0 K0.



            Don't forget that 'Multiply', as any blending mode, functions by manipulating the 'numbers' of your colours. Colours, their numbers, and how they work are fundamentally different in each colour mode.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Aug 23 at 10:32









            Vincent

            18.7k1572109




            18.7k1572109











            • Hey, you're right. It works when I convert the color profile to RGB. I'm used to working in PS & AI and no matter in which color profile I worked on I never bumped into this kind of issue. So this is new to me, honestly. Thank you very much for your fast response :)
              – Chen
              Aug 23 at 10:48











            • @Chen Not only in InDesign, the same also happens in Photoshop in CMYK mode, with two shape layers both set to 100% cyan, and the top layer set to multiply. Multiply can't get you any more cyan than 100%, because it's physically impossible to get more than 100% ink. See screenshot.
              – Billy Kerr
              Aug 23 at 10:57










            • @BillyKerr Thank you Billy. I think Photoshop kind of automatically tweaks the CMYK value in a way that makes the objects look like they are in multiply mode. Since I never bothered to pay attention to the color value.
              – Chen
              Aug 23 at 11:06






            • 1




              100% * 100% = 1.00 * 1.00 = 1.00 = 100%
              – joojaa
              Aug 23 at 12:17










            • @joojaa that's a bad joke-true in math, but still a bad joke.
              – user287001
              Aug 23 at 21:53

















            • Hey, you're right. It works when I convert the color profile to RGB. I'm used to working in PS & AI and no matter in which color profile I worked on I never bumped into this kind of issue. So this is new to me, honestly. Thank you very much for your fast response :)
              – Chen
              Aug 23 at 10:48











            • @Chen Not only in InDesign, the same also happens in Photoshop in CMYK mode, with two shape layers both set to 100% cyan, and the top layer set to multiply. Multiply can't get you any more cyan than 100%, because it's physically impossible to get more than 100% ink. See screenshot.
              – Billy Kerr
              Aug 23 at 10:57










            • @BillyKerr Thank you Billy. I think Photoshop kind of automatically tweaks the CMYK value in a way that makes the objects look like they are in multiply mode. Since I never bothered to pay attention to the color value.
              – Chen
              Aug 23 at 11:06






            • 1




              100% * 100% = 1.00 * 1.00 = 1.00 = 100%
              – joojaa
              Aug 23 at 12:17










            • @joojaa that's a bad joke-true in math, but still a bad joke.
              – user287001
              Aug 23 at 21:53
















            Hey, you're right. It works when I convert the color profile to RGB. I'm used to working in PS & AI and no matter in which color profile I worked on I never bumped into this kind of issue. So this is new to me, honestly. Thank you very much for your fast response :)
            – Chen
            Aug 23 at 10:48





            Hey, you're right. It works when I convert the color profile to RGB. I'm used to working in PS & AI and no matter in which color profile I worked on I never bumped into this kind of issue. So this is new to me, honestly. Thank you very much for your fast response :)
            – Chen
            Aug 23 at 10:48













            @Chen Not only in InDesign, the same also happens in Photoshop in CMYK mode, with two shape layers both set to 100% cyan, and the top layer set to multiply. Multiply can't get you any more cyan than 100%, because it's physically impossible to get more than 100% ink. See screenshot.
            – Billy Kerr
            Aug 23 at 10:57




            @Chen Not only in InDesign, the same also happens in Photoshop in CMYK mode, with two shape layers both set to 100% cyan, and the top layer set to multiply. Multiply can't get you any more cyan than 100%, because it's physically impossible to get more than 100% ink. See screenshot.
            – Billy Kerr
            Aug 23 at 10:57












            @BillyKerr Thank you Billy. I think Photoshop kind of automatically tweaks the CMYK value in a way that makes the objects look like they are in multiply mode. Since I never bothered to pay attention to the color value.
            – Chen
            Aug 23 at 11:06




            @BillyKerr Thank you Billy. I think Photoshop kind of automatically tweaks the CMYK value in a way that makes the objects look like they are in multiply mode. Since I never bothered to pay attention to the color value.
            – Chen
            Aug 23 at 11:06




            1




            1




            100% * 100% = 1.00 * 1.00 = 1.00 = 100%
            – joojaa
            Aug 23 at 12:17




            100% * 100% = 1.00 * 1.00 = 1.00 = 100%
            – joojaa
            Aug 23 at 12:17












            @joojaa that's a bad joke-true in math, but still a bad joke.
            – user287001
            Aug 23 at 21:53





            @joojaa that's a bad joke-true in math, but still a bad joke.
            – user287001
            Aug 23 at 21:53











            up vote
            2
            down vote













            Indesign has a different behavior with the Multiply mode over spot colors or pure inks. The solution is changing the CMYK values as shown on the squares at the right:



            enter image description here



            InDesign Secrets has an explanation and solution about it:




            When you take two process colors (such as magenta or cyan) and overlap them—multiply them, overprint them, whatever you want to call it—the area of overlap gets darker than either of the individual inks. This happens both onscreen and in the printed output.



            If you overlap spot colors, some areas get darker and bolder onscreen. But the printed output may be a different situation. Spot colors are more opaque than process colors, and in the case of this particular job, the designer actually overlapped a single spot ink color on itself. The onscreen result was a lovely interaction among the objects. But in the real world, an orange ink overprinting on top of the same orange ink simply cannot result in a darker orange ink







            share|improve this answer




















            • Thank you for your response. I'll try to tweak the CMYK value a bit so that it will look like the objects have multiply effect. :)
              – Chen
              Aug 23 at 10:55














            up vote
            2
            down vote













            Indesign has a different behavior with the Multiply mode over spot colors or pure inks. The solution is changing the CMYK values as shown on the squares at the right:



            enter image description here



            InDesign Secrets has an explanation and solution about it:




            When you take two process colors (such as magenta or cyan) and overlap them—multiply them, overprint them, whatever you want to call it—the area of overlap gets darker than either of the individual inks. This happens both onscreen and in the printed output.



            If you overlap spot colors, some areas get darker and bolder onscreen. But the printed output may be a different situation. Spot colors are more opaque than process colors, and in the case of this particular job, the designer actually overlapped a single spot ink color on itself. The onscreen result was a lovely interaction among the objects. But in the real world, an orange ink overprinting on top of the same orange ink simply cannot result in a darker orange ink







            share|improve this answer




















            • Thank you for your response. I'll try to tweak the CMYK value a bit so that it will look like the objects have multiply effect. :)
              – Chen
              Aug 23 at 10:55












            up vote
            2
            down vote










            up vote
            2
            down vote









            Indesign has a different behavior with the Multiply mode over spot colors or pure inks. The solution is changing the CMYK values as shown on the squares at the right:



            enter image description here



            InDesign Secrets has an explanation and solution about it:




            When you take two process colors (such as magenta or cyan) and overlap them—multiply them, overprint them, whatever you want to call it—the area of overlap gets darker than either of the individual inks. This happens both onscreen and in the printed output.



            If you overlap spot colors, some areas get darker and bolder onscreen. But the printed output may be a different situation. Spot colors are more opaque than process colors, and in the case of this particular job, the designer actually overlapped a single spot ink color on itself. The onscreen result was a lovely interaction among the objects. But in the real world, an orange ink overprinting on top of the same orange ink simply cannot result in a darker orange ink







            share|improve this answer












            Indesign has a different behavior with the Multiply mode over spot colors or pure inks. The solution is changing the CMYK values as shown on the squares at the right:



            enter image description here



            InDesign Secrets has an explanation and solution about it:




            When you take two process colors (such as magenta or cyan) and overlap them—multiply them, overprint them, whatever you want to call it—the area of overlap gets darker than either of the individual inks. This happens both onscreen and in the printed output.



            If you overlap spot colors, some areas get darker and bolder onscreen. But the printed output may be a different situation. Spot colors are more opaque than process colors, and in the case of this particular job, the designer actually overlapped a single spot ink color on itself. The onscreen result was a lovely interaction among the objects. But in the real world, an orange ink overprinting on top of the same orange ink simply cannot result in a darker orange ink








            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Aug 23 at 10:44









            Danielillo

            11.7k11448




            11.7k11448











            • Thank you for your response. I'll try to tweak the CMYK value a bit so that it will look like the objects have multiply effect. :)
              – Chen
              Aug 23 at 10:55
















            • Thank you for your response. I'll try to tweak the CMYK value a bit so that it will look like the objects have multiply effect. :)
              – Chen
              Aug 23 at 10:55















            Thank you for your response. I'll try to tweak the CMYK value a bit so that it will look like the objects have multiply effect. :)
            – Chen
            Aug 23 at 10:55




            Thank you for your response. I'll try to tweak the CMYK value a bit so that it will look like the objects have multiply effect. :)
            – Chen
            Aug 23 at 10:55










            up vote
            2
            down vote













            Adobe is quiet about the actual formulas of their blending modes. Multiply in CMYK mode fortunately isn't especially complex. It's calculated per channel, for ex. cyan numbers do not affect the result in magenta channel.



            If we have multiple layers and the top layer has blending mode multiply, the resulted image below the top layer is calculated at first. Then the top layer is taken along with th the following formula:



            the resulted CMYK value of all layers = (1-X)*M + X ,where



            X = the bigger one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



            M = the smaller one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



            All CMYK values are presented in scale 0...1, where 1 means 100%



            For example, if the top layer has cyan=50% and the rest of the image has cyan value=30%, the resulted cyan = (1-0,5)*0,3 + 0,5 = 0,65



            that formula cannot give bigger cmyk values than 1 (=100%) which is already presented without math by others. Your 100% cyan and another 100% cyan gives cyan = (1-1)*1+1 = 1



            Unfortunately I cannot give any established source for this formula, it's calculated from few samples by assuming it has nothing else than a sum and product weighted.






            share|improve this answer
























              up vote
              2
              down vote













              Adobe is quiet about the actual formulas of their blending modes. Multiply in CMYK mode fortunately isn't especially complex. It's calculated per channel, for ex. cyan numbers do not affect the result in magenta channel.



              If we have multiple layers and the top layer has blending mode multiply, the resulted image below the top layer is calculated at first. Then the top layer is taken along with th the following formula:



              the resulted CMYK value of all layers = (1-X)*M + X ,where



              X = the bigger one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



              M = the smaller one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



              All CMYK values are presented in scale 0...1, where 1 means 100%



              For example, if the top layer has cyan=50% and the rest of the image has cyan value=30%, the resulted cyan = (1-0,5)*0,3 + 0,5 = 0,65



              that formula cannot give bigger cmyk values than 1 (=100%) which is already presented without math by others. Your 100% cyan and another 100% cyan gives cyan = (1-1)*1+1 = 1



              Unfortunately I cannot give any established source for this formula, it's calculated from few samples by assuming it has nothing else than a sum and product weighted.






              share|improve this answer






















                up vote
                2
                down vote










                up vote
                2
                down vote









                Adobe is quiet about the actual formulas of their blending modes. Multiply in CMYK mode fortunately isn't especially complex. It's calculated per channel, for ex. cyan numbers do not affect the result in magenta channel.



                If we have multiple layers and the top layer has blending mode multiply, the resulted image below the top layer is calculated at first. Then the top layer is taken along with th the following formula:



                the resulted CMYK value of all layers = (1-X)*M + X ,where



                X = the bigger one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



                M = the smaller one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



                All CMYK values are presented in scale 0...1, where 1 means 100%



                For example, if the top layer has cyan=50% and the rest of the image has cyan value=30%, the resulted cyan = (1-0,5)*0,3 + 0,5 = 0,65



                that formula cannot give bigger cmyk values than 1 (=100%) which is already presented without math by others. Your 100% cyan and another 100% cyan gives cyan = (1-1)*1+1 = 1



                Unfortunately I cannot give any established source for this formula, it's calculated from few samples by assuming it has nothing else than a sum and product weighted.






                share|improve this answer












                Adobe is quiet about the actual formulas of their blending modes. Multiply in CMYK mode fortunately isn't especially complex. It's calculated per channel, for ex. cyan numbers do not affect the result in magenta channel.



                If we have multiple layers and the top layer has blending mode multiply, the resulted image below the top layer is calculated at first. Then the top layer is taken along with th the following formula:



                the resulted CMYK value of all layers = (1-X)*M + X ,where



                X = the bigger one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



                M = the smaller one of the CMYK values when the top layer value and the calculated value from the rest of the layers are compared



                All CMYK values are presented in scale 0...1, where 1 means 100%



                For example, if the top layer has cyan=50% and the rest of the image has cyan value=30%, the resulted cyan = (1-0,5)*0,3 + 0,5 = 0,65



                that formula cannot give bigger cmyk values than 1 (=100%) which is already presented without math by others. Your 100% cyan and another 100% cyan gives cyan = (1-1)*1+1 = 1



                Unfortunately I cannot give any established source for this formula, it's calculated from few samples by assuming it has nothing else than a sum and product weighted.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Aug 23 at 14:12









                user287001

                18.1k21036




                18.1k21036



























                     

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