Search found 4 matches

by wwubcn
2019-10-08T11:10:01-07:00
Forum: Users
Topic: convert and gs results difference
Replies: 6
Views: 93627

Re: convert and gs results difference

left from gs, right from convert The resolution seems to be the same (caps height about 7 pixels) but the IM result is monochrome, black and white with no grays, hence the letters are aliased. The command you show "convert -verbose sample.pdf a.jpg" shouldn't remove grays. Can you link to a sample ...
by wwubcn
2019-10-08T05:02:31-07:00
Forum: Users
Topic: convert and gs results difference
Replies: 6
Views: 93627

Re: convert and gs results difference

The two linked images are clearly from different documents, or different parts of the same document, so we don't know why they have different quality. They seem to be rasterized at different densities. "-verbose" is useful to see what Ghostscript command IM is using. You are correct, they are from ...
by wwubcn
2019-10-08T03:56:16-07:00
Forum: Users
Topic: convert and gs results difference
Replies: 6
Views: 93627

Re: convert and gs results difference

fmw42 wrote: 2019-10-07T17:31:19-07:00 ImageMagick uses Ghostscript to process PDF. The only issue would be what arguments are set in the delegates.xml file for reading PS/PDF/etc.
Thanks. I wonder where the "bold" font come from in convert result.

I used command in delegates.xml for pdf, it outputed ps, not jpg
by wwubcn
2019-10-07T16:53:02-07:00
Forum: Users
Topic: convert and gs results difference
Replies: 6
Views: 93627

convert and gs results difference

Hello, I'm doing a OCR project and currently i'm using convert command to convert pdf to jpg. Due to some reason, i have to use ghostscript now. From what i see, the image quality from gs is much better. However, seems OCR has better result from convert command result. convert result https://cl.ly ...