Legacy ImageMagick Discussions Archive

I have this image: https://imagga.com/static/images/taggin ... 76_640.jpg which I want to crop a size of 500x300. The width and height is the target size after the crop has been applied.

The coordinates I want to crop the image with size 100x100 by is 0,0 (top,left) and 639, 384 (bottom,right). When the crop is done I expect the image to be 500x300 cropped with the coordinates above. I have tried two different commands with no success.

This is the first command I have tried:
This is what the result looks like:



The other command I have tried looks like this:
This is what the result looks like from the command above:



How should the command be written to produce the correct result?
This is how the correct cropping should look

This command seems to work. Is this the correct way of doing this with the result I want?

This is the result:

First of all ImageMagick does not use top-left to bottom-right coordinates to crop. It uses WxH+Xoff+Yoff, where W=width, H=height and Xoff,Yoff are the top left coordinates. In ImageMagick 6, you must compute W and H separately from your point pair. In ImageMagick 7 you can do that inline, but not with the syntax you have.

Second, your coordinates 0,0 (top,left) and 639, 384 (bottom,right) do not compute to W=500 and H=300.

It looks like you want to crop to your coordinates and then resize. Note that the width=640 since 0 to 639 is 640 pixels including the 0th pixel. Similarly for height. This will work in both IM 6 and IM 7, since I have precomputed the width and height.

# this will have size 499x300 # this will distort by 1 pixel to make it exactly 500x300 In IM 7, you could do