Vertically stack multiple images using ImageMagick
For any number of input files named in-<something>.jpg: convert -append in-*.jpg out.jpg In order to have specific files appended, or skip numbers instead … Read more
image-processing
How to get a good clean newspaper scan?
A quick fix I do is to compensate for the low quality paper and printing, by adjusting the ‘white point’ and ‘black point’, … Read more
What is the best method to remove duplicate image files from your computer?
Don’t Rely on MD5 sums. MD5 sums are not a reliable way to check for duplicates, they are only a way to check … Read more
How to print documents to pictures (gif, bmp etc.) on windows
You can use PDFCreator. It’s free and open source. Here’s a bit more info on it: Create PDFs from any program that is … Read more
Photoshop: Trim a photo so it contains no transparent pixels?
Image > Trim then select Based On: Transparent Pixels
Is there a generic mime-type for all image files?
Is there a generic mime-type for all image files? Normally there isn’t, but there are a couple of exceptions documented later in this … Read more
How to crop an image using ImageMagick from the command line?
Assuming that you always know the size of your image you can do it like this: convert original.jpg -crop 640×620+0+0 cropped.jpg With the … Read more
I want to change DPI with ImageMagick without changing the actual byte-size of the image data
Specify the units – I seem to remember having a problem when I omitted this option (although DPI should be the default), for … Read more
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 … Read more
Using GIMP, what is the easiest way to repeat an image in a tiled fashion?
I have an image that is 100×125 pixels in size. I’d like to create a new image by repeating the source image, five … Read more
