James Huckenpahler

Hi all - I'm using jit.normalize on a matrix to approximate the 'autolevels' functionality of photoshop - works great when passing the matrix to a jit.window, jit.pwindow, or another matrix - but I want to capture the result image, and when I attach exportimage message, the output is an empty file (pixels are all black - 0 on all planes.) What am I doing wrong here/why are values in the matrix not writing?

attaching a screencap, at test image, and (hopefully) the patch...

comment

button

message

jit.pwindow

jit.matrix

jit.normalize

dark_gradient.png

269_normTest.png

Hi all - I'm using jit.normalize on a matrix to approximate the 'autolevels' functionality of photoshop - works great when passing the matrix to a jit.window, jit.pwindow, or another matrix - but I want to capture the result image, and when I attach exportimage message, the output is an empty file (pixels are all black - 0 on all planes.) What am I doing wrong here/why are values in the matrix not writing? 

Hi all - I'm using jit.normalize on a matrix to approximate the 'autolevels' functionality of photoshop - works great when passing the matri

problem-with-jit-normalize-and-exportimage

i assume the alpha plane is getting zeroed out in jit.normalize for some reason. simply pack in a new alpha plane before exporting:

More - Rob, your patch worked with the test image, but when I tried with others, it didn't - not sure why but definitely jogged my thinking in the right direction (using jit.op to fill alpha) - new patch works on everything I've thrown at it so far - THANKS SO MUCH!

problem with jit.normalize and exportimage