Legacy ImageMagick Discussions Archive

Windows BAT syntax. Adjust for other shells. convert ^ img.png ^ ( +clone gradient_1.png -clut +write result_1.png +delete ) ^ ( +clone gradient_2.png -clut +write result_2.png +delete ) ^ ... ( +clone gradient_n.png -clut +write result_n.png +delete ) ^ NULL: EDIT: corrected to use different gradi...

I recolor an image with multiple gradients like so: 'convert img.png gradient_1.png -clut result_1.png' 'convert img.png gradient_2.png -clut result_2.png' .... 'convert img.png gradient_n.png -clut result_n.png' Is there a way I can batch the process so the image to be converted stays in memory thr...

Thanks for the thorough response. One of the commands I regularly use involves taking a grey-scale image and recoloring it using separate gradient files via convert with the gradients using the -clut argument. The gradients are rarely changed. Is there anyway to keep the gradients in memory so it do...

I've been using ImageMagick for masking, recoloring via -clut, and resizing anywhere from several hundred to a several thousand images at a time. Ideally we would like to speed things up a bit if at all possible. I was curious if anyone had any tips on what I can do to optimize ImageMagick or its en...

-resize and its geometry argument is very flexible. Try adding the shrink only flag convert image.png -trim +repage -resize 32x32 > -gravity center -background none -extent 32x32 result.png The > character may need to be quoted or escaped on your platform. For other flags see: http://www.imagemagic...

you can fill it with transparency. Your trim is removing a lot of width so that is why it is 9x32. convert image.png -trim +repage -resize 32x32 -gravity center -background none -extent 32x32 result.png POST trim, If the icon is SMALLER than 32x32, I just want to extend and not resize, is there a w...

fmw42 wrote:

We want to add some transparency to make it square.

See my post just above yours. We must have posted at about the same time.

That appears to have worked perfectly. Thank you.

snibgo wrote:Offering advice is far easier if we can see the image.

If the trimmed image isn't square, you must decide what you want to do: trim some of the image, or add some blank to make it square, or stretch the image.

We want to add some transparency to make it square.

I tried that as well and it stretches the result to fit the size. I just want to have the same image but on a 32x32 canvas so all my thumbnails are 32x32.

I tested repage with both resize and thumbnail. In both cases the image canvas is coming out 9x32. Same was without repage. I read though the examples to come up with what I have now. Trim takes out all of the transparent space, but then the canvas does not reset to 32x32 with the resize.

I have an image that is 200x200 I want to trim the white space, and make it into an icon that is 32x32. convert img.png -trim -resize 32x32 imgi.png This line of code does not work, it will not make the canvas a uniform 32x32. I have tried taking it and adding -canvas 32x32 or -extend 32x32 but then...

Since you didn't provide input images, I'll generate my best understanding of them. convert rose: -resize 300x200! source.png convert -size 400x400 radial-gradient:white-black -gravity center -crop 300x200+0+0 mask.png convert source.png mask.png -compose CopyOpacity -composite result.png Will it s...

The method needed would depend on the images you are working on. Looking at that stackoverflow post, there is a source/background image in RGB and a alpha/mask image in RGBA. The mask image is entirely black, only the alpha channel varies. Are these images the actual ones you are trying to combine?...

We already have a mask in place but it does not account for graysacle in the mask image only strict on or off.

This works for strict on off masking. What about gradient masking? Ie Instead of black and white for 0 or 100% I want to include gray for the inbetweens(alpha) like 33%, 27%, 77% etc. That Way we could accomplish something similar to this post Here but in command line.