Legacy ImageMagick Discussions Archive

Hi, I'm rounding corners on an image and I'm seeing that the corners are not symmetrical. I've zoomed in and cropped to make it easier to see. The right corner does not extend down as var as the left. The same thing happens on the bottom corners. If you click the image it will load a larger version ...

Unfortunately, I can't post the source images. I think this is enough information to figure out what's happening. thanks.

You must specify -background somecolor before using -alpha background. But those commands simply change the color of the background in the base image for which the pixels are transparent. The default for -background is white, as I recall. Is this what you are trying to do? I'm trying to reimplement...

see below

Hi, I'm converting some PNGs to JPEG using "-alpha background". With some images the background color is white and with others it is black. When I use identify -verbose I get "Background color: white" for both sets of images. ImageMagick-6.9.3-1/bin/convert -resize 60x60> -alpha ...

Thanks, I'll study and learn.

Yeah, I was expecting it to just use C's round function. I'll test some more...

Hi, I'm trying to understand how IM will round floats when resizing. I've seen a case where I had a resize operation result in an image with a 337.5 height and that got rounded down to 337. I'm not seeing a case where an where a resize results in 119.9877 and that is getting rounded up to 120. I tho...