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25
votes
5answers
12k views

How to extract image from PDF file

I currently use Foxit's PDF reader, and I recently downloaded an image from the Internet, but it is inside a PDF file. How do I extract this image? Operating system is Windows 7.
18
votes
11answers
15k views

How do I batch change the date taken information in EXIF data?

I use F-Spot to manage my images. For one set of images, the dates somehow got messed up and they all are marked as September 1st 2007. I'd like to change the date taken information to a different ...
39
votes
4answers
52k views

Using ffmpeg to cut up video

I am using ffmpeg to cut out a section of a large file like this: ffmpeg -i input.wmv -ss 60 -t 60 -acodec copy -vcodec copy output.wmv The -ss part works fine but the -t is ignored. It correctly ...
5
votes
4answers
10k views

How to convert poor quality bitmap image to vector?

I'm designing a website for a group which has lost the original digital image for their logo. The only file they have of it is a jpg which was embedded into a word document. The image has everything ...
1
vote
4answers
2k views

transform a trapezium into a rectangle

I use my iPhone to capture a painting. However, the angle was not perfect, so instead of getting a straight rectangle, I get a trapezium. However, I want to transform this trapezium back into a ...
21
votes
4answers
2k views

Paint.NET equivalent for Linux?

On Windows, my favorite image editor is Paint.NET. However, on Linux, GIMP is as unfriendly as photoshop despite having less features. (i.e. It takes ages to load, their's far too much stuff). Most ...
2
votes
2answers
1k views

On the fly volume compression (waveform capping) for VLC or OS X

I'm looking to impose a hard limit on a movie. In particular when I have earbuds in and a reasonable volume set, loud or sudden sounds (gun shot, dramatic sound effects, gun fire, etc) are loud enough ...
5
votes
9answers
719 views

Software for handling camera RAW-files [closed]

I use a digital SLR as most other photographers do today and have quickly realised that capturing images using camera-RAW files is the way to go. Personally I use Adobe Lightroom to handle my photo ...
0
votes
1answer
788 views

blur face on a video file

does anyone know how can i blur a moving face on video file?
15
votes
7answers
6k views

Software to clean up photos of whiteboards and documents?

I take a lot of photos of whiteboards, blackboards, and so on for teaching purposes (examples online through May 2010). I'm interested in cleaning them up for archival purposes, preferably using ...
2
votes
1answer
234 views

Get image pixels of prescribed color

I have an image (PNG or JPG) inside which there is at least one pixel of a certain RGB color I know in advance. I want to find the pixel(s) of that color For example, I may have image.jpg, inside ...
2
votes
4answers
2k views

Convert color photos of documents to good black-and-white (bitonal) images?

Since I don't have a copier or scanner, I'm using an 8 megapixel camera to copy documents. This works pretty well except they need a lot of processing afterward. I'd like to get from a photo to a ...
1
vote
2answers
134 views

Improving the quality of badly recorded sound files

I have an audio file with a very bad recording (recording was made in very noisy conditions, at a conference). My recorder was too far from the speakers. Do you have any idea about how to improve ...
5
votes
2answers
3k views

How can I batch convert SVG files containing text to PDF files (specifically on CentOS 5.3 x86_64)? [duplicate]

Possible Duplicate: How do I convert an SVG to a PDF on Linux I would like to programatically convert SVG files to PDF files. However, the SVG files contain text that must be searchable in ...
1
vote
2answers
194 views

Processors cores over processor speed [closed]

Dual 5520 Quad-Core Xeon 2.26GHz with HT & Turbo(2.53 GHz) -vs- Single Quad-Core E3-1240v2 (3.4 GHz to 3.8 GHz) I run web hosting. I'm just wondering which would be more ideal. Personally, I am ...
1
vote
9answers
17k views

How do I resize images without a loss in quality?

I have a number of JPEG images with a resolution of 2010 x 1080. I want to create an index page for these images which has smaller versions of the originals that I can zoom in on. I tried to do this ...