cmyk

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to access files that are stored as Jpeg files, is there an easy way to display these image files without performance loss ? 回答1: You can load the JPeg file using an instance of TJPEGImage and then assign it to a TBitmap to display. You find TJPEGImage in unit jpeg. jpeg := TJPEGImage.Create; jpeg.LoadFromFile('filename.jpg'); bitm := TBitmap.Create; bitm.Assign(jpeg); Image1.Height := bitm.Height; Image1.Width := bitm.Width; Image1.Canvas.Draw(0, 0, bitm); Alternatively, this should also work: bitm := TBitmap.Create; bitm.Assign(

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am working on a project that requires me to separate out each color in a CYMK image and generate a halftone image that will be printed on a special halftone printer. The method used is analogues to silk screening in that the process is almost identical. Take a photo and break out each color channel. Then produce a screen for the half tone. Each color screen must have it's screen skewed by 15-45 (adjustable) degrees. Dot size and LPI must be calculated from user configurable values to achieve different effects. This process I am told is

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 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 = 17 4 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 direct conversion formulas in other posts. If, however

According to this question: Displaying PDF documents on iPad - Color Problems some PDFs don't display right on iOS devices due to colors not being in RGB. It's also mentioned that converting PDFs from CMYK to RGB could be automated using ghostscript. Anyone know how the actual command might look like? Codo We use Ghostscript to convert from CMYK to RGB when generating PDFs from Postscript files. It should also work for PDF-to-PDF conversions. The followind command line is used: gs -sDEVICE=pdfwrite -dBATCH -dNOPAUSE -dCompatibilityLevel=1.4 -dColorConversionStrategy=/sRGB -dProcessColorModel=

Does anybody know how to properly identify CMYK images in ASP.NET using C#? When I check the Flags attribute of a Bitmap instance, I get incorrect results. I have created three images to test this: cmyk.jpg, rgb.jpg and gray.jpg. These are respectively CMYK, RGB and Grayscale images. This is my test code: static void Main(string[] args) { Bitmap bmpCMYK = new Bitmap("cmyk.jpg"); Bitmap bmpRGB = new Bitmap("rgb.jpg"); Bitmap bmpGray = new Bitmap("gray.jpg"); Console.WriteLine("\t\tRgb\tCmyk\tGray\tYcbcr\tYcck\tPixelFormat"); Console.WriteLine("cmyk.jpg\t{0}\t{1}\t{2}\t{3}\t{4}\t{5}", IsSet

I am trying to generate a PDF using a library called wkhtmltopdf to create an RGB pdf. I am then using ghostscript to convert it to a CMYK format, however, the black text that is in the pdf is not pure black [cmyk(0,0,0,1)]. The black color is visible in other channels. The command for ghostscript is: gs -dBATCH -dNoOutputFonts -dNOPAUSE -dTextBlackPt=1 -dBlackPtComp=1 -sTextICCProfile -dNOCACHE -sDEVICE=pdfwrite -sProcessColorModel=DeviceCMYK -sColorConversionStrategy=CMYK -sOutputICCProfile=ps_cmyk.icc -sDefaultRGBProfile=srgb.icc -dOverrideICC=true -dRenderIntent=1 -sOutputFile=cmyk11.pdf

I convert image based on CMYK to image based on RGB in the following way using ImageMagick(command Line) : convert.exe -profile icc:JapanColor2001Coated.icc -colorspace cmyk input.jpg -profile icc:sRGB.icc -colorspace sRGB output.jpg And I challenge to convert image based on CMYK to image based on RGB in the following way using Magick.net I show my sorce code below : private MagickImage convertCMYKToRGB(MagickImage image) { image.AddProfile(new ColorProfile(@"C:\sRGB.icc")); image.ColorSpace = ColorSpace.sRGB; return image; } but converted image using Image Magick(command line) is different

I've spent a long time trying to go from a CMYK EPS to a RGB PNG using RMagick and Rails. Hopefully this will be of use to someone: def convert_image_from_cmyk_to_rgb( image ) #puts image.alpha? if image.colorspace == Magick::CMYKColorspace image.strip! image.add_profile("#{Rails.root}/lib/USWebCoatedSWOP.icc") image.colorspace == Magick::SRGBColorspace image.add_profile("#{Rails.root}/lib/sRGB.icc") end image end You can download the ICC files direct from Adobe at http://www.adobe.com/support/downloads/iccprofiles/iccprofiles_win.html The only thing I haven't been able to suss is how to