Questions tagged [image-processing]
The image-processing tag has no usage guidance.
183
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Which compression modes of convert of imagemagick are lossless (with -quality 100)?
On my Debian 12,
$ convert -list compress
B44A
B44
BZip
DXT1
DXT3
DXT5
Fax
Group4
JBIG1
JBIG2
JPEG2000
JPEG
LosslessJPEG
Lossless
LZMA
LZW
None
Piz
Pxr24
RLE
RunlengthEncoded
WebP
ZipS
Zip
Zstd
Which ...
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3
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How to convert an image from perspective projection to orthographic projection?
Sometimes you want to make a 2D image on the computer from a real life 2D image, but for whatever reason you can't get a straight, front-on view of the image.
Say it's a billboard and you can only ...
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Can't install volumentations on google collab
I am relatively new here. I have a very limited dataset of 3d-images that i want to use as a dataset to train a neural network. This is why i am trying to augment those images .
I see that ...
0
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1
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File Size increases on basic pdf -> raster image -> pdf roundtrip with `pdfimages` + `magick`
Why do I not succeed into making this simple pdf → raster image → pdf round-trip file-size-stable?
$ # Get original file (8KB, just extracted from my scanner).
$ curl "https://nextcloud.mbb.cnrs....
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How to extract frames from a video using ffmpeg?
Basically I want to extract all frames from the video where the images will be resized to be 720p. All of this I know how to do. But for testing I want to extract every Nth frame. So every 30th image ...
- 539
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4
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How can I cut a collection of images in half on Windows 10?
I have 50 images. I need to cut each image in half (vertical cut). How can I do that on Windows 10 via a batch process (= not cutting each image manually one by one)? All the images are in a single ...
4
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1
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Replacing a color using -transparency regardless of existing pixel opacity, using ImageMagick
I have a colorful image that has alot of existing transparent background, but also a few blocks of hot pink rgb(255,0,255) color I want to additionally become transparent.
I'm doing so like this:
...
- 56.1k
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How to use action matching for images (actual images, not URLs or filenames) in KDE Clipboard?
What one does use to match objects such as images?
- 111
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How to get information about an image (picture) from the Linux command-line?
I'm working on a web app and currently 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'm migrating. Things like image dimensions.
...
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How to find duplicate images, possibly with different resolutions?
I have some images (photos) and there are duplicates but no matter how I sort them they are scattered because of resolution and irregular naming.
I tried gm compare but can't figure out which metric ...
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Are the "full size" images from Instagram on a browser actually full size?
I am following the "view page source" method for getting the full resolution of an Instagram image, but feel like I'm doing something wrong. Let's consider this example.
If you view source ...
- 56.1k
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1
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152
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How to composite images with offsets and scaling into a single image?
I would like to use imagemagick to create a mosaic.
I have a list of images along with their individual offsets and scales, for example:
a.jpg, translate to 0,0 and scale to 100%
b.jpg, translate to ...
- 598
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How to draw a moving line as slider for the image comparison video generator script in Python with FFmpeg
I have the below script to generate a video slider with FFmpeg
You can see example here (first 10 seconds) : https://youtu.be/F_wf1uHqZRA
I am trying to replicate effect of imgsli like a person is ...
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Add 'Save as webp' To windows 10, Right Click Context Menu
I would like to know if there is a way to add 'Save As WebP' image file format to windows 10 right click context menu. Through the registry. WebP images are a new file format that is designed ...
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389
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How to invert an SVG image?
I’m searching for a solution (in Linux console) which “inverts” an SVG. It shall take an input .svg and generate output .svg with multiple shapes, each one filling a single transparent area. And vice ...
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