An open source project backed by years of continual development, ImageMagick supports over 90 image formats and can perform impressive operations such as creating images from scratch, changing colors, stretching, rotating, and overlaying images, and overlaying text on images. Whether you use ImageMagick to manage the family photos or to embark on a job involving millions of images, this book will provide you with the knowledge to manage your images with ease. The Definitive Guide to ImageMagick explains all of these capabilities and more in a practical, learn-by-example fashion. You'll get comfortable using ImageMagick for any image-processing task. Michael Still released his first open source project in July and has been actively developing ever since.
|Published (Last):||20 October 2005|
|PDF File Size:||20.53 Mb|
|ePub File Size:||3.45 Mb|
|Price:||Free* [*Free Regsitration Required]|
Want to read Slashdot from your mobile device? Point it at m. As some others have pointed out, running ls in a subshell gets around the problem of what happens if there are no JPG files in the directory, but it also has its own problems, specifically when there are file names present which contain spaces. Another common goof harmless, but still superfluous is to type some complex, piped command which begins with.
I'm always amazed at the amount of time the developers of g. At this point, I don't think it can be done. Which is why I wish Gimp had a client-server interface f.
I couldn't agree more. For a start, a single monolithic app like ImageMagick is just not the Unix way. It means that to add functionality, you need to recompile the application. With netpbm, if you want a new feature, you just write a filter and stick it in the pipeline.
Much easier, and much more flexible. In the past, my only gripe was that netpbm and pbmplus before it was unable to handle transparency in image. Wrong wrong wroooong, I'm afraid! ImageMagick is very much in the Unix league! It is not a monolithic application , it's a monolithic library. ImageMagick itself is spread across multiple programs convert, identify, composite, montage, compare, display, animate, import, conjure that do different kind of things. Heck, people should look at convert and identify alone as a good example of The Unix Way!
And last I checked you don't need to recompile any apps to do unusual things with the graphics data, you. Simply click on the appropriate version below and it will launch itself and ask you a few installation questions.
Versions with Q8 in the name are 8 bits-per-pixel component, whereas, Q16 in the filename are 16 bits-per-pixel component. A Q16 version permits you to read or write bit images without losing precision but requires twice as much resources as the Q8 version. Versions with dynamic in the filename include ImageMagick libraries as dynamic link libraries. If you are not sure which version is appropriate, choose ImageMagick I know that its not a readme file but the website seems pretty explainatory.
You are right about the FTP site, however. Unfortunately, neither pnmscale nor pamscal seem to do the trick but identify would recognize the results if they did :.
I've heard this a few time, but never really got the big difference between accessing the utils as ". One thing I really like about IM is that I don't have to even care about the input format, so when the users upload their random collection of gifs, jpegs, tiffs, 30 meg bmps and picts, I can just give the whole indiscriminate mess to IM and get back a set of nice, s.
One thing I really like about IM is that I don't have to even care about the input format, so when the users upload their random collection of gifs, jpegs, tiffs, 30 meg bmps and picts, I can just give the whole indiscriminate mess to IM and get back a set of nice, shiny, sized and formatted pngs. I just want to point out that's something to like about NetPBM as well. You'd use anytopnm [sourceforge. If you wish to write your own programs using a powerful image-processing library, you will, most likely, prefer the fork of ImageMagick called GraphicsMagick [graphicsmagick.
BMP format'. But this is horrible for the users -- they may not have the image in the required format, and some won't have the knowledge to get it into the format we require.
I told him to just inline imagemagick's convert function, and output the exact format he requires. The sanitization is now very simple: if imagemagick can read it and successfully convert it to the desired format, it's good.
Automatically sync your GitHub releases to SourceForge quickly and easily with this tool and take advantage of SourceForge's massive reach. Follow Slashdot on LinkedIn. Michael J. Ross writes "To modify a digital image, most computer users turn to a GUI-based image processing application, such as Photoshop.
However, while Photoshop and many other similar programs can process multiple images in batch mode, they still require manual usage, and thus typically are unable to process images via a command line or within a second application. Those capabilities call for a programmatic digital image manipulation tool such as ImageMagick, which is explored in a relatively new book, The Definitive Guide to ImageMagick.
This discussion has been archived. No new comments can be posted. More Login. Just create an action which does what you want, then you can export an "EXE" which takes as command line argument the file you want to process, and optionally, the output.
Works like a charm. Share twitter facebook linkedin. Re:yes, you can command line photoshop Score: 5 , Insightful. Parent Share twitter facebook linkedin. Re:yes, you can command line photoshop Score: 5 , Funny.
Re:yes, you can command line photoshop Score: 2. I kind of scanned over it and missed it the the first time ;. Yeah, that was a rookie move. Re:yes, you can command line photoshop Score: 5 , Interesting.
Am I the only person who laughed out loud? Probably not, but I think it's kinda silly. If you're on a machine where you're worried about spawning off one more process, I feel sorry for you. That's kinda the beauty of Unix. Indeed, for some things, it may not be the Right Way at all. If you really wanted to streamline it and if you're that worried about it, why the heck are you writing a shell script?
What a long, strained, and ultimately pointless defense of an obvious GOOF. Congratulations, you've won the weekly Overthinking Award. That behavior can be modified with the "nullglob" setting in bash, at least. I prefer wildcards to always expand, even if the expansion is empty, for exactly this reason. Basically, the AC's script uses a superfluous step to expand the file name list.
You know, I don't know what the problem is but whenever I try to do a large batch 20 or so images with ImageMagick inside a loop it hangs my machine. It only started happening when I upgraded to a 7MP camera and the images not at full resolution either! Now I have to break the images up into batches of 5 and run the script each time for those. Re:yes, you can command line photoshop Score: 3 , Informative. If the problem happens no matter where you locate the images local hd then it've got no clue what your problem is.
I've got no problem with 85MB files 14MPix 16b tiffs. Re:yes, you can command line photoshop Score: 2 , Funny. Re:yes, you can command line photoshop Score: 5 , Informative. The original script will choke on images with a space in the file name. Underbridge writes: on Monday March 13, PM Anyone who puts newlines in a filename should be beaten publically.
OK, before the riots begin, I've got dibs on the flogging stick. Command-line control implies a bit more than creation of a canned. OK, let's say I need to automate the creation of graphical "Tabs" for a web layout. They have to contain text determined at runtime from, say, a database , blended and drop-shadowed. Can I do this using the technique you mentioned?
I can do it in imagemagick though. Well, you have to do the detail-work on your own, but ImageMagick has an option to add text to an image using the font of your choice. Someone correct me if I'm wrong, but there isn't a drop-shadow option, and I'm not sure what you mean by blend.
Re:yes, you can command line photoshop Score: 2 , Insightful.
Slashdot Top Deals
Would you like to tell us about a lower price? If you are a seller for this product, would you like to suggest updates through seller support? And the creators of ImageMagick were closely involved in the book's technical review. Read more Read less. Amazon International Store International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.
The Definitive Guide to ImageMagick
It seems that you're in Germany. We have a dedicated site for Germany. An open source project backed by years of continual development, ImageMagick supports over 90 image formats and can perform impressive operations such as creating images from scratch, changing colors, stretching, rotating, and overlaying images, and overlaying text on images. Whether you use ImageMagick to manage the family photos or to embark on a job involving millions of images, this book will provide you with the knowledge to manage your images with ease. The Definitive Guide to ImageMagick explains all of these capabilities and more in a practical, learn-by-example fashion. You'll get comfortable using ImageMagick for any image-processing task.