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chaiNNer-org / chaiNNer

A node-based image processing GUI aimed at making chaining image processing tasks easy and customizable. Born as an AI upscaling application, chaiNNer has grown into an extremely flexible and powerful programmatic image processing application.

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logical flow control / image size output

Fennecai opened this issue · comments

commented

Motivation
it would be nice to be able to have switch nodes automatically switch for complicated tasks based on logic. the other day i was upscaling a large number of images with no way to know the original resolution of every single one, but some were already decent resolution and didnt need an upscale, just a sharpening. It would be beneficial to have this so i could set up a thing where if the image size is already bigger than a certain amount, it would not upscale it but route it to a sharpening part of the graph instead.

Description
this suggestion is kindof 3 different but related things:

  1. the choice of which output on a switch node should have an input that works based on an int number (1 = A, 2 = B etc)
  2. there should be a math comparison node that works like an IF statement depending on the comparison (if input A == input B then C else D, and perhaps the comparison could be configured by the user to be ==, >= , <=, etc.)
  3. load image node / load images node should have an output of width / height size in pixels

Alternatives
I haven't thought of any alternative suggestions that would be beneficial on a broader scale; however one alternative for my specific use case would be to just detect in upscaling nodes if the resulting image would be a ludicrous size like 8192 pixels wide and skip the upscale in that case.

However, i think having numerical logic / automatic flow control would be more applicable for more uses.

commented

+1, I think this would be a super useful feature.

commented

load image node / load images node should have an output of width / height size in pixels

Totally missed this before, but FYI there's the get dimensions node for this purpose

commented

hi @joeyballentine , you are right. However does not seem possible to perform logic operation on that information. For example, move ahead with a rescale if the width is less than 1024, or skip otherwise, etc.

commented

Correct, that is not possible. I was just letting you know you can already get the dimensions of an image is all