Search found 7 matches

by Deane
2015-12-27T19:24:57-07:00
Forum: Users
Topic: Pixel Math
Replies: 3
Views: 5431

Re: Pixel Math

Thanks very much! Will try this tomorrow. Too late tonight. It looks like what I want! Sorry I forogt to say what version I have. It is ImageMagick 6.9.0 Q16 (32-bit) Windows on a Vista op system. I am using the DOS-like command line execution method because I can't find anything about how to run or ...
by Deane
2015-12-27T10:11:57-07:00
Forum: Users
Topic: Pixel Math
Replies: 3
Views: 5431

Pixel Math

I am new to Image Processing in general but familar with code writing. There are so many choices in IM that I am unsure what to use for my application. First, is there a glossary of IM terms somewhere so I know what Mogrify and other terms mean? Second, is there a command that allows a math ...
by Deane
2015-11-19T18:58:12-07:00
Forum: Users
Topic: Why two output files?
Replies: 1
Views: 2325

Why two output files?

Last winter I did some greyscale image subtraction using IM (Windows command line box) and wrote down the commands I used. They worked as expected and output the difference image. This week I can't make the commands function as expected: I get two files named File-0.jpg and File-1.jpg Example ...
by Deane
2015-03-06T20:15:13-07:00
Forum: Users
Topic: Subtracting two images
Replies: 12
Views: 17528

Re: Subtracting two images

This works! (from http://www.imagemagick.org/Usage/compare/#difference).

composite bag_frame1.gif bag_frame1.jpg -compose difference difference_jpeg.gif

Thanks for letting me know that those backslashes are from Bash and are not needed. They were confusing me.
by Deane
2015-03-06T19:50:41-07:00
Forum: Users
Topic: Subtracting two images
Replies: 12
Views: 17528

Re: Subtracting two images

I am more interested in why the last 2 commands don't work as they are taken directly from the examples in the post above by Anthony. Even better, just tell me how to subtract all pixels in "ImageB.jpg" from "ImageA.jpg" and put the result into "ImageC.jpg". I am not interested in the color, just ...
by Deane
2015-03-06T15:06:19-07:00
Forum: Users
Topic: Subtracting two images
Replies: 12
Views: 17528

Re: Subtracting two images

OK, I figured out how to do that. You have to use a right-click menu, swipeing it does't work. Thanks. Microsoft Windows [Version 6.0.6001] Copyright (c) 2006 Microsoft Corporation. All rights reserved. C:\Users\User>composite sky.jpg pelican.jpg \ -compose differnce dif.jpg composite.exe: unable to ...
by Deane
2015-03-06T08:56:11-07:00
Forum: Users
Topic: Subtracting two images
Replies: 12
Views: 17528

Re: Subtracting two images

Hi, I am new to ImageMagick and I am trying to subtract one JPG image from another one. I have used some of the commands shown in the message above but none of them seem to work for me. Please take a look at the error messages I am getting and tell me what I am doing wrong. Thanks! [img]C:\Horizon ...