The image-manipulation tag has no wiki summary.
0
votes
2answers
45 views
shell command to get pixel size of an image
Is there a shell command that returns the pixel size of an image?
I'm trying to produce an animated gif starting from different gifs with different sizes using convert (e.g. convert -delay 50 1.gif ...
3
votes
2answers
451 views
Oneliner for slicing an image?
I'm looking for a oneliner command that would slice an image into given proportions.
Say input would be filename and slice dimensions. Are there any standard command-line tools for this? I tried ...
6
votes
3answers
1k views
0
votes
2answers
116 views
Command line convert webp to jpg?
I'm using ubuntu 12.04.
I've installed libwebp2 & libwebp-dev
So far, no example found on the net of converting webp to jpg.
Some webp files can easily converted by using imagemagick with ...
4
votes
4answers
6k views
pdf to jpg without quality loss; gscan2pdf
When I convert a pdf file to bunch of jpg files using
convert -quality 100 file.pdf page_%04d.jpg
I have appreciable quality loss.
However if I do the following, there is no (noticeable) quality ...
7
votes
2answers
997 views
remove extra tilespace from a montage (ImageMagick) composite image?
I have a bunch of photos. They're all the same height, and I'm trying to put them together into a composite image using ImageMagick's montage program via Bash. The problem is that by default, the tile ...
0
votes
1answer
51 views
Removing all tags from images [duplicate]
Possible Duplicate:
Batch delete exif info
How can I remove all tags from images under a directory (using Linux)? I can find all files with something like find pictures -type f -iname ...
1
vote
1answer
76 views
How to convert JPG files to one JPG file
I have several JPG files from a PDF file, so concatenating the JPG files need to be "under each other". How can I do this?
2
votes
5answers
264 views
Are there any animation programs for animating static images?
I'd like to make a simple movie with my kids. I've taken some pictures of toys and cropped them to be the characters. I'd like to make a movie where these move against some background (ie the ...
3
votes
1answer
175 views
How to rename all files and add image size to file name
I can`t make this work. I have a lot of images and i want to rename his name and append image size to name using exiv2
eviv2 pr * prints all info about file
# exiv2 pr 9b523e5a002268fe5067a928
File ...
1
vote
1answer
78 views
Define length and scale picture
Is there any program under linux where I can do the following:
Suppose I have for example a scan of a drawing on a squared paper and suppose that the squares of the original paper have any distance ...
3
votes
4answers
1k views
convert single-page landscape pdf into rescaled double-page portrait pdf
I'm having trouble using convert to do the following:
I have a bunch of single-page pdf files whose geometry corresponds to a landscape A4 sheet. The actual content is visually split in 2 pages. ...
5
votes
1answer
213 views
Redirect terminal output to image file
I need to programmatically run some unix commands and get the output in a image file, the format could be png or jpeg (jpg).
The commands are run in an AIX (IBM *nix) machine. I don't have ...
3
votes
3answers
475 views
Is there a command line tool for image manipulation?
I'm searching for a tool for command line image manipulation. I want something similar to pinpoint presentation tool where I edit a file and can directly see the results on another window.
I can get ...
1
vote
1answer
242 views
*ix based Morphing software?
Morphing is "a special effect in motion pictures and animations that changes (or morphs) one image into another through a seamless transition", according to Wikipedia here. My friend recommended some ...
0
votes
1answer
189 views
Image (having text-and-numbers) to text-file matching [:alnum:] nicely with some Unix -tool?
Suppose a photograph with text and numbers. I want to manage it in my editor with tools such as grep, standard text-processing things such as Vim's block-highlighting and also more advanced things ...
2
votes
1answer
64 views
Given a .gif, return the color components as X11-style hexadecimal specifiers (or equivalents)
I am a fan of potrace, and I recently read the Potrace FAQ.
The FAQ includes this beautiful one-liner:
cat img.gif | giftopnm | ppmcolormask #641b1b | potrace
The command I am looking for would ...
5
votes
1answer
2k views
Open source duplicate image finder for Linux?
Is there a Free and Open Source duplicate image finder for Linux based systems?
Finding exact duplicates (based on content, not file name) is sufficient for me, but the ability to find similar images ...
4
votes
1answer
302 views
Resize a very tiny xcf image without blurring or dithering it
I have some drawings I made with an Intuos tablet. All of these drawings are 25x35 or so. The color of each pixel was very carefully selected. They're kind of like 'miniatures.'
I need to resize ...
4
votes
1answer
352 views
How can I generate CMYK images via the command line under Linux?
I have an application I have developed which is generating RGB PNG images with text on them via imageMagic, like so:
convert -size 1000x1000 -density 300 xc:white -pointsize 24 \
-fill "rgb(0,0,0)" ...
1
vote
1answer
423 views
Change Linux boot logo
I want to change the penguin logo that appears on boot. I looked into it and found this command:
pngtopnm nelogo.png | ppmquant -fs223| pnmtoplainpnm > logo_linux_clut224.ppm
But when I tried it ...
2
votes
1answer
907 views
Convert pdf to jpg keeping the same name; resize & create thumbs then rename?
I have a lot of pdf files (3308) on which I must apply four steps:
1) I have to convert all to jpg
I found this little script on the web with ImageMagick: batch converting pdf to jpg
I want to do ...
1
vote
3answers
363 views
Clipboard for images
I often read some text with images and often happens that the text talks about an image that is on the next page and next page and previous page and I have to go back and forward and usually forget ...
2
votes
1answer
767 views
Convert a folder of images into a multi-page pdf file usind command line tools?
I have a folder with 100 jpg images. I want to convert these images into a multi-page pdf file, with all the images (cropped to A4 size). They are already in the correct rotation.
Which tools should ...
4
votes
1answer
573 views
imagemagick creating one big image by piling up thousand of images of the same width?
I've got a few tens of thousands of images all of 2000 pixel width, and I would like to pile them up in one big image of summed up height and 2000 pixel width. I guess there must be a way to do that ...
2
votes
1answer
528 views
Montage together five gifs
I have five gifs all with the same number of frames and the same framerate. Is it possible to montage these together into one gif where each frame is similar to a normal montage of static images and ...
3
votes
1answer
1k views
Resizing and croping images to an aspect ratio of 6x4 with width of 1024 pixels
I have a mixed set of images, each one has a slightly different resolution with a slightly different aspect ratio from other images.
I have tried using commands like
convert -resize
and
convert ...
3
votes
1answer
283 views
Extract graphs from PDFs
I have a situation where I need to extract images from lots of PDF files and display them on a website. My PDFs have "regular" images as well as lots of graphs.
I used pdf2xml and it pulls out the ...
0
votes
1answer
52 views
Writing to picture which is scanned document
I have a scanned contract and I need to change only a few names and dates in the contract.
It's easy to scan the document but impossible to ocr the document and open in *.doc format.
Is there an ...
2
votes
1answer
367 views
How to scale xvfb?
I'm looking to develop a web-application that translates request parameters into a PNG/GIF chart. I'm looking to reuse an open source charting library, but I have concerns about the scalability.
A ...
2
votes
2answers
361 views
Measuring the length of a curved line
Is there a software tool that will allow me to measure the length of a curved line? I have a series of lines in an image that I want to measure the length of. I have a tablet so I can trace over the ...
5
votes
2answers
169 views
What tools to use to eliminate metadata in graphics files?
What tools can I use to delete all the EXIF, IPTC, XMP, etc metadata from graphics files?
