Legacy ImageMagick Discussions Archive

my image format is tiff

I am guessing that your question is related to this topic: http://www.imagemagick.org/discourse-server/viewtopic.php?f=27&t=28222? The ColorSpace property will give you the color space of the image. In your other topic I asked what you are planning to do with this information. Maybe we can figure ...

I need to what property of image that Imagemagick colorspace reading?
or otherwise How the colorspace finding the color property of the image like specific line in image? like Colormode or ICC profile ...etc

latest analyse this tag <xmpG:red> is only available for RGB, this is not available in CMYK or Grayscale images.... This is only a metadata, which does not affect the view of the image. ImageMagick does not use this value when 'convert'-ing or 'identify'-ing or 'display'-ing. I guess you add RGB ...

fmw42 wrote:Sorry, I do not know ASP.NET nor Magick.NET.

Thanks fmw42, I found the logic but need to know how to implement programmatic-ally, I think I placed my question in correct section, but I need help from the developer of imagemagick dll for c# and asp.net...

I reprocessed your new grayscale.eps and it is still the same as before If you want to accept some small mean value as a threshold for all CMY channels that is close enough to 0 for you, then you could consider those as (essentially) gray. That is up to you. Thanks experts, I can understand better ...

Thanks for all your help to find out the solution, still I am facing some confusion to find out black or color. Kindly suggest me which is the best option is to differentiate the color and blackandwhite. latest analyse this tag <xmpG:red> is only available for RGB, this is not available in CMYK or ...

246246 wrote:

newbeee wrote: I get your point, as per my understanding all the value of k is zero so we consider as a RGB? Is I am right?

You misunderstand somewhere. If there is channel K, it is CMYK, no matter what the values are.

So my grayscale image black value is zero right?

Using your latest grayscale image, I get: convert Grayscale.eps -format "%[fx:mean.c], %[fx:mean.m], %[fx:mean.y], %[fx:mean.k]\n" info: 0.00128133, 0.00116061, 0.00114715, 0.0431655 Background color: cmyk(255,255,255,0) Border color: cmyk(223,223,223,0) Matte color: cmyk(189,189,189,0) Transparent ...

Using your latest grayscale image, I get: Perhaps that is all you need. Perhaps 0 or 1 means grayscale(????) Thanks for swipe effort by you, Sorry for the inconvenience I uploaded the wrong image please check the latest link for that image. How could I implement this EXIFTOOL in asp.net? Any ...

I have no idea how you created this file, nor how to extract the imbedded RGB image from it, if that is even possible. The file is certainly very strange. OK, But at least I need to differentiate the images by color or black? I think this is not strange. Could you help me on this by analyzing this ...

246246 wrote:I checked another way, it seems 1-RGB.eps is CMYK.

Even though I replace

%%DocumentProcessColors: Cyan Magenta Yellow Black

line to the same number of space (to keep the length), ImageMagick (and pdfimages) report it is CMYK.

Thanks 246246, So how can I find out the RGB?

I do not believe you have a proper RGB image. It has CMYK channels. Nevertheless, if all your images have CMYK channels, then you can tell if gray and not color, if only the K channel has non-zero mean in the statistics and the mean of CMY channels equals 0. Thanks fmw42 for sharing the analyzed ...

similar but not same, in this I am required to find out RGB too programmatically, Is that possible to find out RGB?

For all the RGB images its look like %%DocumentProcessColors: Cyan Magenta Yellow Black for CMYK some file having %%DocumentProcessColors: Magenta Yellow Black and some files having %%DocumentProcessColors: Cyan Magenta Yellow Black, I thoroughly checked the files and all the RGB files having this ...