cmyk

问题 I use this snippet to convert RGB color to CMYK in javascript: function RgbToCmyk(R,G,B) { if ((R == 0) && (G == 0) && (B == 0)) { return [0, 0, 0, 1]; } else { var calcR = 1 - (R / 255), calcG = 1 - (G / 255), calcB = 1 - (B / 255); var K = Math.min(calcR, Math.min(calcG, calcB)), C = (calcR - K) / (1 - K), M = (calcG - K) / (1 - K), Y = (calcB - K) / (1 - K); return [C, M, Y, K]; } } now I want to convert returned CMYK to percentage CMYK. for example this RGB color (171,215,170) become

问题 I use this snippet to convert RGB color to CMYK in javascript: function RgbToCmyk(R,G,B) { if ((R == 0) && (G == 0) && (B == 0)) { return [0, 0, 0, 1]; } else { var calcR = 1 - (R / 255), calcG = 1 - (G / 255), calcB = 1 - (B / 255); var K = Math.min(calcR, Math.min(calcG, calcB)), C = (calcR - K) / (1 - K), M = (calcG - K) / (1 - K), Y = (calcB - K) / (1 - K); return [C, M, Y, K]; } } now I want to convert returned CMYK to percentage CMYK. for example this RGB color (171,215,170) become

问题 I'm trying to decode a jpeg that is in CMYK color format. BitmapFactory returns null. I googled around but with no luck. Is it possibile Android team did not the right job supporting all kind of color format? I'm using Android 2.2. Thank you so much. 回答1: Found the solution: loading the JPEG using the external library libjpeg compiled with NDK. It has been a hard work, but I did it! 回答2: It's very possible I'd say: http://code.google.com/p/skia/issues/detail?id=69 来源： https://stackoverflow

问题 this question seems posted at many places over the interwebs and SO, but I could not find a satisfactory answer :( How can I convert a RGB value to a CMYK value using an ICC profile? The closest answer I have is there, where it explains how to convert from CMYK to RGB but not the other way around, which is what I need. (http://stackoverflow.com/questions/4920482/cmyk-to-rgb-formula-of-photoshop/5076731#5076731) float[] colorValues = new float[4]; colorValues[0] = c / 255f; colorValues[1] = m

问题 In this question: Convert RGB to CMYK, I got a way to convert RGB int array to CMYK byte array. Now I hope to convert ARGB int array to CMYKA byte array directly instead of working with the resulting CMYK array and adding the extra alpha channel afterwards. Is it possible? I tried to use 4 bands offset to create the raster like this: WritableRaster raster = Raster.createPackedRaster(db, imageWidth, imageHeight, imageWidth, new int[]{0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000}, null); But

问题 I've tried fill="CMYK(0.50, 0.50, 0.00, 0.00)" For the fill of a polygon and it shows as black. I know that black is the fallback. I am editing an svg inside of an HTML document 回答1: I believe you need to expand on your answer to specify how you intend to print the SVG. Certainly colors can be specified through "color" and optionally "icccolor". IN "icccolor" you can specify #CMYK color space as an alternate. As in: <rect x="25" y="250" width="250" height="310" fill="rgb(255,0,0) icc-color(

问题 I've tried fill="CMYK(0.50, 0.50, 0.00, 0.00)" For the fill of a polygon and it shows as black. I know that black is the fallback. I am editing an svg inside of an HTML document 回答1: I believe you need to expand on your answer to specify how you intend to print the SVG. Certainly colors can be specified through "color" and optionally "icccolor". IN "icccolor" you can specify #CMYK color space as an alternate. As in: <rect x="25" y="250" width="250" height="310" fill="rgb(255,0,0) icc-color(

问题 Is there any technology available in a browser (client-side) able to convert sRGB colors to CMYK and vice versa using a specified ICC color profile? I'm currently using a hidden Java applet for the conversions (Java has a built-in class for this), but I'm trying to find an alternative, since java applets are slow and outdated. SVG would be ideal if browsers supported ICC colors in SVG, but no-one does. Flash or Silverlight would also be good, but I can't find anything relevant. 回答1: Am I

问题 I'm looking for an algorithm to convert an RGB color to CMYK. Photoshop is performing the conversion below: R = 220 G = 233 B = 174 C = 15 M = 0 Y = 40 K = 0 回答1: The conversion from RGB to CMYK is dependent on the physical device/process being used to lay down the CMYK ink. These are represented in software as Color Profiles. ICC and ICM color profiles of physical devices determine the resulting colors. If you are not concerned with true representation on a physical device then use the

问题 I have a problem with converting a CMYK Color to RGB. In the internet there is many formulas to convert it but for example when I convert CMYK (0,100,100,0) to RGB, it get value (255 0 0) but in Adobe Photoshop RGB value is (237,28,36) and I want this one. Is anybody know how to convert it with java or .NET? 回答1: There are other questions asking the same thing: https://stackoverflow.com/questions/tagged/rgb+cmyk How to convert CMYK to RGB programmatically in indesign Convert RGB color to CMYK