Imagemagick is a cross-operating-system bitmap manipulation software package, run from commandline and programmable through a variety of programming languages.

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2
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2answers
47 views

Automating the reizing of different size images to a 300px by 200px image size

I have various size images, some tall and wide others wide and tall, all with different image dimensions. Is there a platform where I can dump all these images and they will be resized to fit into a ...
3
votes
1answer
53 views

EPS file looks great in AI but washed out in Mac Preview or ghostscript

I have an EPS file that, when opened in Illustrator, looks great. AI can export to a PNG that also looks great. When I open this file with Preview on OSX, or use ghostscript/imagemagick to convert it ...
0
votes
0answers
50 views

Where does Photoshop get the pixel ratio from?

I have images that I generate via ImageMagick that are supposed to have a non-square pixel ratio. Photoshop seems to be able to detect that the pixel ratio is not square (I see that there is a custom ...
3
votes
1answer
142 views

Animate images in correct order using ImageMagick [closed]

I'm using ImageMagick on Ubuntu Linux and I'm attempting to convert sequentially named files into a gif animation. Usually this is an easy operation and only requires that I run something like convert ...
0
votes
0answers
126 views

Resizing image with ImageMagick and Ruby on Rails

I have been trying to use Imagemagick to resize images uploaded by a user as a square. Currently, I am using the ! like so - 640x640! This works fine if the image i feed it is a resolution of ...
0
votes
0answers
85 views

Are there tools (imagemagick, graphicmagik) that use zopfli compression as part of their stack?

The title pretty much sums it up, are there any good batch type tools that provide high level of compression such as zopfli when creating optimized images and underlying paginated formats (TIFF, PDF)? ...
0
votes
0answers
66 views

How to axis-align concatenated images with ImageMagick's montage command?

I have this image: And I want to tile the image so that the result looks like this: I need this to be performed for a time-sequence of images, and there are a lot of them, so I want to script ...
3
votes
1answer
81 views

Is there an Imagemagick replacement for Photoshop’s “same color” feature?

Photoshop offers a feature called same color. It adjusts the colors of an image based on another. Here is an example, these 2 pictures share different colors (one of them has an orange shade over it)....
2
votes
4answers
33k views

How to convert Adobe Illustrator file (.ai) to Photoshop (.psd) without having Adobe Illustrator installed

I want to convert an Adobe Illustrator file (.ai) to an equivalent Photoshop (.psd), preserving layers, text and so on. I would like to know if there is something like imagemagick to do this, because ...
1
vote
0answers
722 views

imagemagick convert: changing color profile

I use the imagemagick convert command to create thumbnails for the web from large images. convert y2.psd[0] -resize '80x40' y2.png Some images uploaded by a customer are CMYK Photoshop files with ...
3
votes
2answers
1k views

Gimp 2.6.12: modify alpha channel while preserving color

This is for a video game in which a specularity mask is in the alpha channel of the normalmap. I need to create an image where the alpha value for some pixels are 0 (to indicate no specularity,) but ...
2
votes
1answer
158 views

How to convert a specified colour to transparent for a series of PNGs with ImageMagick?

I've installed ImageMagick on Windows 7 64-bit and I'm wondering how I can convert a series of PNGs to transparent PNGs in a timely manner (I have 180 PNGs to convert, so yeah I can't exactly do them ...
2
votes
1answer
735 views

Nearest neighbour interpolation not working in ImageMagick

I want to display an image and have the pixels big and clearly visible. As it's common to display scaled image with some form of smooth filtering, the best option is to scale up the image resolution ...
5
votes
3answers
1k views

Using imagemagick to create vibrant images

I'm in the process of helping out a friend who has a bunch of inventory pics. Most appear faded/washed out, and generally dull. I really like the effect as described here: http://www.abeautifulmess....
4
votes
2answers
3k views

How to correctly using potrace (CLI) to trace bitmap

I was trying to vectorize a .png. I found a utility (which is incorporated into InkScape), the potrace. If any of you knows how to use potrace, kindly teach me the right way to get sharp output. ...
1
vote
0answers
150 views

Rescale an image on a log scale

I'm trying to rescale a map based on a log scale (so the first inch is about a mile, the second inch is two miles, the third is four miles, etc.). To complicate things, I would like this to be radial, ...
1
vote
1answer
352 views

Maximizing saturation while converting CMYK to RGB

I have many designs prepared for print (CMYK), but now I need to present them on a projector. As projectors go, I know most of them have weak contrast, and many of my colors wouldn't be as accented as ...
23
votes
9answers
9k views

Is there any way I can add watermark to .jpg files (around 15000), en masse instead of one by one?

I have around 15000 .jpg files that need to be watermarked. Is there any way to process these images en masse to add the watermark?
1
vote
0answers
532 views

Replace color for all layers

I have a file with about 500 layers, and I need to replace a color in all of them. I looked through different solutions here and elsewhere, and they all suggested using an adjustment layer or ...
3
votes
4answers
18k views