On Automatic 1111, I'm struggling to get inpaint upload to work. I've heard you need to define your mask first, but I don't know what that means? And how do you ensure it's grafted onto the correct part of the image? I can't see any means of selecting any part of either the base image or the upload image?
Any help is very much appreciated. I am both a noob AND an old person.
If you do not want to do the inpainting directly in the web interface, you'll have to upload a "alpha mask" of the area that you want to inpaint.
Here's an example:
Let's say this is your image. You open it in a editor that supports layers like Gimp. You add a transparent layer on top and draw the area that you want to inpaint over it in black. It should look like this.
Next, you replace the color layer with a white layer. It will look like this:
This is the image that you save and what you upload to the Automatic1111 web interface. Feel free to ask if you have any questions.