Legacy ImageMagick Discussions Archive

well yeah modified for correct file names. It's inside a script and runs on many images so.. any way. point is it worked.

Wanted to swing by and say thanks to ya'll. I ended up using convert color3.tiff -contrast-stretch 35,25% t.png followed by convert color3.tiff -alpha off -fuzz 10% -fill white +opaque black result.tiff Worked perfectly. Removed the color backgrounds entirely and I was then able to crop and OCR the ...

Well that kind of works. However it keeps a ton of the images which are a dark color but not black... I may be barking up the wrong tree here. I'm just trying to get this simple for tesseract and find a way to automate the process.... cropping is so error prone since the images I'm taking in are not ...

version mageMagick-6.9.0-Q16 windows.

The link is on drive here: https://drive.google.com/file/d/0B2aTfI9sj6x9VmtHTFRpVDJUVWs/view?usp=sharing should be public Oh.. Well here is relevant info. It's also outputting this error: convert.exe: Unknown field with tag 20624 (0x5090) encountered. `TIFFReadDirectory' @ warning/tiff.c ...

Alright, well I do also have imagemagick. I ran this by imagemagick (not graphics magick this time) and replaced the -opaque with a +opaque. Now I do get changed output. However I'm getting a plain white wash. No black or any thing like it. I also tried the double %% as suggested. Not a windows ...

Wow. I can not say how much of a dope I feel right now.

Thank you for pointing that out though.

wow

convert C:\temp\color.tiff -fuzz 10% -fill white -opaque black c:\temp\bw.tiff

The output file is 100% identical to the input.

I'm clearly missing some thing very simple but I haven't the foggiest.