hello folks, hope everyone is having a good day. i'm rwiting because i want to replicate some of the blending options in photoshop using IM (python API). in photoshop, if you double-click on a layer that has another one underneath it, you get the "Layer Style" dialog box, which has Blending Options. I'm interested in the "Blend If:" area only, where you define the brightness range of pixels on the topmost layer and how it will blend with the underlying layer. You choose what channels to use (I want to use the composite RGB channels), and I want to use define the brightness levels of the top layer only for blending. I would love to define a range of partially blended pixels as you can in Pshop by option- or alt-clicking and splitting the sliders. here's a quote from the Pshop CS2 user guide that further details what i'm trying to achieve:
"Use the This Layer sliders to specify the range of pixels on the active layer that will blend, and therefore appear, in the final image. For example, if you drag the white slider to 235, pixels with brightness values higher than 235 will remain unblended and will be excluded from the final image."
is this functionality possible with IM? i can't figure it out. thanks soooo much for your time in considering this problem!
