swd1

I am trying to create a test pattern image with white backgrounds and

various R, G, B, gray level patches on the image.

The value of R, G, B will be changed in real time using a slide control.

Can someone point me to a patch with similar structure.

Even after looking at tutorial etc, I have not been able to create a basic white image with say an embedded red patch.

I am a jitter newbie.
I am trying to create a test pattern image with white backgrounds and
various R, G, B,  gray level patches on the image.
The value of R, G, B will be changed in real time using a slide control.

Can someone point me to a patch with similar structure.
Even after looking at tutorial etc, I have not been able to create a basic white image with say an embedded red patch.

jitter-test-image-creation

have you had a look at the jit.fill helpfile? might do what you want. for more control look at the "setcell" message to jit.matrix.

Yes, as MIB said, the "setcell" message to jit.matrix sounds like what you're after. See Jitter Tutorial 2.

jitter test image creation