Simplifying Colors on Canvas












-1















My end goal is to have two version of an image, the first is the basic default image, but the second should be a simplified version of the first, using only basic colors.



I would like to change all the ranges of red for example to (255, 0, 0). I have tried manually adding in ranges of red but just for that one color there were about 20 different statements. I would like to know how anyone would go around doing this. I have looked into color quantization and that seems pretty relevant and useful.



Here is an example of what I would like to do:



Colors simplified



Any help would be appreciated.










share|improve this question

























  • Look up colour quantisation.

    – Amadan
    Nov 21 '18 at 5:28











  • Show some attempts so that we may be able to help

    – Ahmad
    Nov 21 '18 at 5:31
















-1















My end goal is to have two version of an image, the first is the basic default image, but the second should be a simplified version of the first, using only basic colors.



I would like to change all the ranges of red for example to (255, 0, 0). I have tried manually adding in ranges of red but just for that one color there were about 20 different statements. I would like to know how anyone would go around doing this. I have looked into color quantization and that seems pretty relevant and useful.



Here is an example of what I would like to do:



Colors simplified



Any help would be appreciated.










share|improve this question

























  • Look up colour quantisation.

    – Amadan
    Nov 21 '18 at 5:28











  • Show some attempts so that we may be able to help

    – Ahmad
    Nov 21 '18 at 5:31














-1












-1








-1








My end goal is to have two version of an image, the first is the basic default image, but the second should be a simplified version of the first, using only basic colors.



I would like to change all the ranges of red for example to (255, 0, 0). I have tried manually adding in ranges of red but just for that one color there were about 20 different statements. I would like to know how anyone would go around doing this. I have looked into color quantization and that seems pretty relevant and useful.



Here is an example of what I would like to do:



Colors simplified



Any help would be appreciated.










share|improve this question
















My end goal is to have two version of an image, the first is the basic default image, but the second should be a simplified version of the first, using only basic colors.



I would like to change all the ranges of red for example to (255, 0, 0). I have tried manually adding in ranges of red but just for that one color there were about 20 different statements. I would like to know how anyone would go around doing this. I have looked into color quantization and that seems pretty relevant and useful.



Here is an example of what I would like to do:



Colors simplified



Any help would be appreciated.







javascript colors rgb






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 21 '18 at 15:53







Drew Snow

















asked Nov 21 '18 at 5:27









Drew SnowDrew Snow

647




647













  • Look up colour quantisation.

    – Amadan
    Nov 21 '18 at 5:28











  • Show some attempts so that we may be able to help

    – Ahmad
    Nov 21 '18 at 5:31



















  • Look up colour quantisation.

    – Amadan
    Nov 21 '18 at 5:28











  • Show some attempts so that we may be able to help

    – Ahmad
    Nov 21 '18 at 5:31

















Look up colour quantisation.

– Amadan
Nov 21 '18 at 5:28





Look up colour quantisation.

– Amadan
Nov 21 '18 at 5:28













Show some attempts so that we may be able to help

– Ahmad
Nov 21 '18 at 5:31





Show some attempts so that we may be able to help

– Ahmad
Nov 21 '18 at 5:31












1 Answer
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oldest

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I believe that I have found a suitable answer to my question.



I have solved my question by calculating the 'color distance' of each pixel. I then loop over my default colors and compared the distance for each of them. I then check which 'distance' is the lowest. The color that is the closest to my default color is the closest match.



The equation that I used to calculate the color distance was the following:



Math.sqrt( Math.pow((r1 - r2), 2) + Math.pow((g1 - g2), 2) + Math.pow((b1 - b2), 2));


- Thanks to Amadan for the tip about color quantization.






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    1 Answer
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    active

    oldest

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    oldest

    votes






    active

    oldest

    votes









    0














    I believe that I have found a suitable answer to my question.



    I have solved my question by calculating the 'color distance' of each pixel. I then loop over my default colors and compared the distance for each of them. I then check which 'distance' is the lowest. The color that is the closest to my default color is the closest match.



    The equation that I used to calculate the color distance was the following:



    Math.sqrt( Math.pow((r1 - r2), 2) + Math.pow((g1 - g2), 2) + Math.pow((b1 - b2), 2));


    - Thanks to Amadan for the tip about color quantization.






    share|improve this answer




























      0














      I believe that I have found a suitable answer to my question.



      I have solved my question by calculating the 'color distance' of each pixel. I then loop over my default colors and compared the distance for each of them. I then check which 'distance' is the lowest. The color that is the closest to my default color is the closest match.



      The equation that I used to calculate the color distance was the following:



      Math.sqrt( Math.pow((r1 - r2), 2) + Math.pow((g1 - g2), 2) + Math.pow((b1 - b2), 2));


      - Thanks to Amadan for the tip about color quantization.






      share|improve this answer


























        0












        0








        0







        I believe that I have found a suitable answer to my question.



        I have solved my question by calculating the 'color distance' of each pixel. I then loop over my default colors and compared the distance for each of them. I then check which 'distance' is the lowest. The color that is the closest to my default color is the closest match.



        The equation that I used to calculate the color distance was the following:



        Math.sqrt( Math.pow((r1 - r2), 2) + Math.pow((g1 - g2), 2) + Math.pow((b1 - b2), 2));


        - Thanks to Amadan for the tip about color quantization.






        share|improve this answer













        I believe that I have found a suitable answer to my question.



        I have solved my question by calculating the 'color distance' of each pixel. I then loop over my default colors and compared the distance for each of them. I then check which 'distance' is the lowest. The color that is the closest to my default color is the closest match.



        The equation that I used to calculate the color distance was the following:



        Math.sqrt( Math.pow((r1 - r2), 2) + Math.pow((g1 - g2), 2) + Math.pow((b1 - b2), 2));


        - Thanks to Amadan for the tip about color quantization.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 21 '18 at 17:14









        Drew SnowDrew Snow

        647




        647






























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