Legacy ImageMagick Discussions Archive

Hmmm aren't levels different than curves?

Can I pass a polygon to levels to make it run a lookup table on it? Because that's what I need... If I needed to adjust the levels I would've used levels, but I need curves. So I use a lookup table.


Is there something I'm missing?

Okay, so I'm still having speed problems :/ Here's a command with 2 channels combined: convert /Users/iGaret/Desktop/DSC_3933-1.JPG \( -size 256x256 xc:black -fill white -draw "polygon 0,0 0,21 139,136 255,243 255,0" -crop 256x255+0+1 +repage -scale 256x1! -channel blue \) -clut \ \( -size 256x256 ...

anyone?

How would I go about doing that?

Yes, but try this: Create an executable shell script with this as the contents: "$3"convert "$1" \( -size 256x256 xc:black -fill white -draw "polygon 0,0 0,21 139,136 255,243 255,0" -crop 256x255+0+1 +repage -scale 256x1! -channel blue \) -clut "$2" "$3"convert "$2" \( -size 256x256 xc:black -fill ...

Here's what gets outputted: 2011-03-18T11:52:25-04:00 0:00.000 0.000u 6.6.5 Cache convert[52955]: cache.c/DestroyPixelCache/1507/Cache destroy 2011-03-18T11:52:25-04:00 0:00.000 0.000u 6.6.5 Cache convert[52955]: cache.c/OpenPixelCache/4056/Cache open /Users/iGaret/Desktop/DSC_3933-1.JPG[0] (heap ...

How could I possibly reaching memory limits? The images are between 1.5 megs and 10 megs, I have 4 GIGS of memory in my computer...

Hello! I'm currently working on an image processing application and am using the command like version of IM. I need to emulate "curves" so I've generated a 256x256 polygonal map that I'm using for a LUT. The problem is when I bring in 10 megapixel images it can take a VERY long time (I'm talking ...