Search found 4 matches

by gabf
2016-09-16T03:02:20-07:00
Forum: Bugs
Topic: Problems with -density if -unit PixelsPerInch not specificied before input image
Replies: 18
Views: 13485

Re: Problems with -density if -unit PixelsPerInch not specificied before input image

PNG only supports pixelspercentimeter. If you supply pixelsperinches, it will automatically be converted to the equivalent resolution in pixelspercentimeter. What you're saying doesn't make much sense to me. The first image supports only PixelsPerCentimeter, so the -density value specified for the ...
by gabf
2016-09-15T05:49:28-07:00
Forum: Bugs
Topic: Problems with -density if -unit PixelsPerInch not specificied before input image
Replies: 18
Views: 13485

Re: Problems with -density if -unit PixelsPerInch not specificied before input image

You will need to hear back from one of the IM developers or some one more knowledgable than me on that topic. Ok. You're not a developer but you seem to know this forum well, so you can probably still advise me on this: is it likely that a developer reads this sooner or later, or I'd better repost ...
by gabf
2016-09-14T02:33:39-07:00
Forum: Bugs
Topic: Problems with -density if -unit PixelsPerInch not specificied before input image
Replies: 18
Views: 13485

Re: Problems with -density if -unit PixelsPerInch not specificied before input image

For some images, the units are left unspecified and IM will not assume it to be pixels per inch. You must specify the units. You seem to have read my post too hastily, please read it more carefully if you want to help. The case of -units completely unspecified is just one of at least three that don...
by gabf
2016-09-13T07:26:24-07:00
Forum: Bugs
Topic: Problems with -density if -unit PixelsPerInch not specificied before input image
Replies: 18
Views: 13485

Problems with -density if -unit PixelsPerInch not specificied before input image

I think this is a bug, but it might also be a misunderstanding on my part. It smells a lot like a bug though so I post it under Bugs anyway. I made the tests below using ImageMagick 7.0.3-0 Q8 x86 under Windows XP. Background: I need to periodically convert certain png images to jpeg, and I want the...