Questions tagged [compositing]

Compositing is the combining of visual elements from separate sources into single images, often to create the illusion that all those elements are parts of the same scene.

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Can the framebuffer in OpenGL jargon or its color buffer end up being the one and the same memory location as the one scanned by a display controller?

My understanding is: the 'framebuffer' in OpenGL is a collection of buffers: many (due to swapping or stereo rendering) color buffers, (only one?) z-buffer and (only one?) stencil buffer; each OpenGL ...
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1answer
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Given a background image B and a composie image of A OVER B, can we somehow recover image A?

I often find myself in the situation where I have some old image where I composed a translucent overlay on top of a background, but then lost (or more likely discarded) the overlay. I still have pre-...
6
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1answer
2k views

What is the difference in overlay and framebuffer?

I have been trying to understand display and graphics. I feel that it's hard to make a logical image of the terms. I understand this: Frame buffer is a dedicated memory that has the image/video/...
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1answer
40 views

Given a composited image, is it possible to find the color and opacity of an overlaid shape?

I have an image that I'm trying to recreate programatically using Pyx in Python. It seems that there's an overlaid circle covering the color wheel. I'm trying to see if there's a way to, given the ...
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2answers
651 views

How to get clean plate from moving footage?

I'm not sure if this question is on-topic or not, based on the tour. Feel free to point me elsewhere. The short version of the question is: what's the typical technique for generating the clean-plate ...