Legacy ImageMagick Discussions Archive

Hi, Below is the link for InputFile: https://www.dropbox.com/s/1gh3xf99ohlcosp/TransparentBGTiffFile.tif?dl=0 Command tried: convert -alpha off Input.tif[0] -units pixelsperinch -resample 72 -background white -flatten output.jpg We are a generic command for all types of files, so using "-alpha ...

Hi,

Could anyone provide any update on how to detect image has transparent layer?

I thik it comes only when you have an image that is type=palettealpha. That is then the alpha value used in pseudocolor table. But I do not think it is relevant to your above processing. There is no current string form (http://www.imagemagick.org/script/escape.php) to get that in a simple way. You ...

Thanks for the detailed info.. In identify -verbose of some images: Red: min: 28 (0.109804) max: 247 (0.968627) mean: 219.575 (0.861078) standard deviation: 60.2877 (0.236422) ..... Green: min: 32 (0.12549) max: 243 (0.952941) mean: 217.206 (0.851787) ..... Blue: min: 33 (0.129412) max: 248 (0.97254...

Your first file has just a single alpha channel, which is fine for Imagemagick. Your second file has multiple layers including some alpha masking and the only layer that is active is the transparency layer. You also some alpha channels that are turned off. You have selected layer [0] which is the a...

While converting TIFF files to JPEG, we are using below command: Case 1: To deal with Tiff files which contains multiple channels, we have included "alpha off" in the command and worked fine convert -alpha off inputImage[0] -units pixelsperinch -resample 150 outputImage.jpg Sample file: ht...

Try using the more proper IM syntax with the input image first as per my example earlier, which worked for me. See if that helps. Otherwise, I suggest you upgrade IM and your libjpeg delegate convert InputImage.jpg[0] -units pixelsperinch -resample 300 -profile USWebCoatedSWOP.icc outputImage.jpg C...

If it is in the input file, then the file is corrupt. If IM does not show it and PS does, then I guess you need to ask on some PS forum. Photoshop keeps certain data proprietary that only it generally reads. The stripes could be hidden in those areas. I can see two blue stripes near the bottom of t...

I would explicitly flatten, eg: convert Input.tif[0] -units pixelsperinch -resample 72 -background white -flatten output.jpg Note: I resample after reading the input. I don't know if that is better, as you have a clipping path. Above command not working for all files..For some files, we still facin...

I get no steaks/stripes in IM 6.9.0.6 Q16 Mac OSX when I run convert InputImage.jpg -units pixelsperinch -resample 300 -profile /Users/fred/images/profiles/USWebCoatedSWOP.icc out1.jpg My guess is that your older versions have bugs. This has been seen before, but I do not recall the bug report. You...

Post your input image to some place like dropbox.com and put the URL here. We would need to examine it and try your commands. Note that 6.9.0.1 is a bad version and should be avoided. Try the latest 6.9.0.6. Hi, Below are the links: input file: https://www.dropbox.com/s/mpczhilffo1jsrm/InputImage.j...

Hi, We are tried the same, applying profile for output only (single -profile) and also changed the order of commands, still we are experiencing same issues. IM versions : 6.8.8.9 (windows), 6.9.0.1 (windows), 6.8.8-7 (Linux) Command: convert InputImage.jpg -units pixelsperinch -resample 300 -profile...

Hi, Might be a bug, so posting here again... We are facing below two issues after resolution change from 72 to 300 for a JPEG-CMYK: 1. CMYK color ratio's of input file and output file differs 2. Blue lines on input image are misplaced in output image (we can view the blue lines in both input image a...

You can only accomplish that after we have researched how the tiff:37724 profile works and update it when the density changes. I have no idea when we will be able to find time to do this. Thanks for the update, so can this be a considered as an ImageMagick bug? We are stuck with this issue when con...

I don't understand what you are asking? Have you tried to remove it with '+profile tiff:37724'? Hi, We are able to remove the profile "tiff:37724'" and now the file is opening in Photoshop without any issue, but we lost image layers and transparency. How to resample these types of files (...