Quote:
Originally Posted by kacir
Happens all the time.
- If you run a server and you need to generate pictures containing text, pictures containing charts.
- If you are a Calibre developer and you need to process covers, or perhaps extract cover image from pdf file
- If you want to process pdf file to series of bitmaps for OCR . This happens inside OCR software.
- if you want to make a foolproof description of how to convert an image so it can be used as cover for PocketBook 360, for example you publish following command
Code:
convert escher01.png -quantize GRAY +dither -colors 4 -rotate "-90>" escher01.bmp
Have a look here for many, many examples of how Imagemagick can be used http://www.imagemagick.org/Usage/ |
I'm a totally visual person and need to manipulate my images directly. Of course, my usage is completely different from what you listed above.
Quote:
Well, it depends on what machine you have.
Let's suppose you have Windows XP
Install Imagemagick from the site.
Now go to start menu, select "run" and type cmd to the prompt.
A Command Prompt - relatively small black window with a bit of text should appear.
Now type command convert to the Command Prompt and press Enter.
A long text will scroll in the window - describing all the command options 'convert' command has.
Now, let's forget about Users directory. From Graphical User Interface in windows make directory C:\work and put your files there.
Now, in Command prompt type C: and press Enter
Type cd C:\work and press enter
Now you can start working.
If you have bitmap called escher01.png in C:\work for example, you could run command
Code:
convert escher01.png -quantize GRAY +dither -colors 4 -rotate "-90>" escher01.bmp
to convert it into four color dithered greyscale and rotate it (but it will be rotated only if width is greater than height.)
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Yes! I was able to get to this: "A long text will scroll in the window - describing all the command options 'convert' command has." but didn't know where to go from there. So make directory, put pre-prepared images, study the list of commands. Thank you! I'll have to leave it for later when I don't have such a high stack of papers in front of me.
OK, so I continued working on this, got the cmd prompt figured out and managed to convert the photo I want to use into an .img file. The problem is I too keep getting a file that's 1875000 bytes. Anyone have an idea how to get to 1920000 bytes on Windows XP?