Jpg Not Loading In Android Only

I have been resampling images via imagemagick on a windows machine. Vast majority work fine however there are one or two images that won't load on any android device. I thought i

Solution 1:

I know it's poor form to answer your own question but just in case this helps anyone else... It appears that the issue was I converted some PSD and other files that were originally made for printing and had the CMYK color format instead of RGB.

To find this out I used ImageMagick's Identify command and did this

   Identify -verbose broken.jpg

giving

Image:broken.jpgFormat:JPEG(JointPhotographicExpertsGroupJFIFformat)Class:DirectClassGeometry:256x256+0+0Resolution:250x250Print size:1.024x1.024Units:PixelsPerInchType:ColorSeparationEndianess:UndefinedColorspace:CMYKDepth:8-bit

This showed the colorspace was CMYK so a quick test of the other broken images showed they all had the same issue. To convert them again ImageMagick to the rescue and used

   convert broken.jpg -colorspace RGB fixed.jpg

So it appears iOS/PC/Mac all support JPEGs that have CMYK but Android appears not to or at least not all CMYK images (As of Android 4.2)