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-1
votes
0answers
23 views

Why does most video processing use 32-bit floating point arithmetic?

I noticed that most consumer graphics hardware only perform well with 32-bit floating point arithmetic: Intel's integrated GPUs seem to have an expected double performance for 16-bit and a slightly ...
0
votes
1answer
14 views

Export all MATLAB images in one go

Code: https://pastebin.com/6MWsmaJFEssentially, I've created a function in Matlab which spits out around 200 images.How do I save all of these images in one go?
0
votes
0answers
35 views

Automatically generate slideshow with 1000 imag + text pairs

I want to create a slideshow video with background music automatically from a folder containing 1000 subfolders, in which there are 1 picture and 1 text file serving as the text on that picture slide....
37
votes
4answers
45k views

I want to change DPI with ImageMagick without changing the actual byte-size of the image data

In GIMP there is a very simple way to do what I want. I only have the German dialog installed but I’ll try to translate it. I’m talking about going to Picture -> PrintingSize and then adjusting the ...
0
votes
0answers
32 views

Two eps files merged into one with them side-by-side: How?

How can I combining two EPS files side-by-side on Linux? What is the command to use?
0
votes
0answers
36 views

Is there a way to make a pixel transparent based on its brightness level?

I would like to be able to make all pixels transparent that are in the bottom 50% of the brightness range. Let's call this image A, and say it is derived from a photo that is overexposed.I would ...
11
votes
4answers
26k views

How to get a good clean newspaper scan?

I tried a few times to scan newspaper articles, but the images I got were always blotchy and with bad colors, sort of like this:Sometimes I see some really good scans, like this:What is the trick ...
7
votes
10answers
2k views

How to compress a huge amount of PNG images?

At work, on certain projects I have to manage a lot of images. Most of the time PNG files work the best for what I'm doing.With such a huge amount of images, I've tried using PNG compression with ...
7
votes
5answers
5k views

Detecting blank image files

I am using scanimage with a document scanner (Canon DR-2510C) that supports duplex scanning. Unfortunately, its SANE driver does not support blank page detection, so that with mixed pages (single/...
0
votes
0answers
32 views

Fix Extremely low exposure pictures/videos

I have got a shot of our successful performance, but we were shocked at how noisy and how low the exposure of the video is. It is hard for us to re-shot for some reason. So I plan to recover it, but ...
0
votes
1answer
21 views

Replacing colors in a logo to match site colors

I am working on trying to update the website for our organization. We are Tech Coordinators for school districts in Mississippi. I am not artistic, but I wanted to take a little time and try to change ...
203
votes
12answers
187k views

How to get information about an image (picture) from the Linux command-line?

Am working on a web-app, and currently am migrating some stuff from an old app, but I hate that I have to open an image editor to get some info about images I am migrating. Things like image ...
60
votes
16answers
159k views

How can I combine 30,000 images into a timelapse movie?

I have taken 30,000 still images that I want to combine into a timelapse movie. I have tried QuickTime Pro, TimeLapse 3, and Windows Movie Maker, but with such a huge amount of images, each of the ...
6
votes
2answers
2k views

How do I go about detecting 'fake' hi-res images (TIFF when really JPEG, deliberately upscaled images)?

In my line of work I often work with images for print marketing from multiple sources and occasionally when I have asked for hi-res images (instead of initially the low-res ones that they start by ...
0
votes
1answer
44 views

Images with blurring in the center

I was trying to remember the name of a specific effect/coding which is applied to images, where the center of image (or any part) is clear and gradually quality decreases in a circular manner. What is ...

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