When I use Imagemagick to overlay a pure white rectangle over a larger transparent canvas: convert -size 2000x2000 xc:none -fill white -draw "rectangle 900,900 1100,1100" white_box.png Then I open this image in Photoshop or similar, the transparent canvas appears black.…
I have a few dozen Kodak CD-ROMs (with a few thousand photo scans) from the early 2000s that contain PCD files. I want to convert them to a maximum quality file (TIF?) for further processing in Photoshop. It's easy to…
I'm using the kmeans feature in version 7 of ImageMagick. time convert in.png -kmeans 20 out.png This command completes rather quickly on my machine (1.7s) However when running within docker it goes much slower (48.8s). I've tried docker on my…
I'm trying to deploy Rust with Image magic support via docker, can't seem to get image magic to work. Here is the docker FROM ubuntu:20.04 # Change package repository to a different mirror RUN sed -i 's/archive.ubuntu.com/us.archive.ubuntu.com/g' /etc/apt/sources.list # Update…
I have one server with Ubuntu 20.4 and ImageMagick 6.9.10-23. The newer server is with Ubuntu 22.04.3 LTS and ImageMagick 6.9.11-60. I upload a SVG file and want to convert it to PNG and resize it. convert -format png -density…
I have the image below with almost all background in black. Is there a way to crop rectangles surrounded by black without know the coordinates, were: height > 400px height about 144px height about 40px I'm not interested in the…
I currently have a large range of colored pictures which all differ in brightness. However since this is for a research project, it is necessary the brightness levels in these pictures are standardized. Therefore I was wondering if there is…
I've image an image with white background. I used command to make it transparent convert imoji.png -fuzz 20% -transparent white result.png I got the result.png. The command has removed pixels inside the emoji and some other parts. I need it…
I need to use imagick PHP extension for image manipulation. Before I installed this extension, I also installed ImageMagick on the machine using sudo apt install imagemagick. Turns out, this version is outdated (because it's not supporting HEIC image format).…
I have the following code: $im = new Imagick($original_image_filename); $original_width = $im->getImageWidth(); $original_height = $im->getImageHeight(); $original_length = $im->getImageLength(); if($original_width > 300) { $im->scaleImage(300, 0); // max size for images is 300px wide } $scaled_width = $im->getImageWidth(); $scaled_height = $im->getImageHeight(); $scaled_length…