DO NOT USE THIS TAG! If you have a question about a disk image (a file that represents the contents and structure of a data disk), use [disk-image] or [iso-image] instead. If you have a question related to picture files, use a tag related to what you are doing with the images, such as ...

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48
votes
4answers
3k views

Does only GIF support animation?

Is GIF the only major image format that supports animation? With GIF images being a relatively poor quality format, why are they the only one that supports animation in most viewers / browsers?
40
votes
8answers
98k views

GIMP: change one colour to another?

In GIMP, I have a green button GIF image: it shades from dark green to light green, against a transparent background. I would like to change it to blue, and keep the shading, so it shades from dark ...
38
votes
16answers
78k views

How can I combine 30,000 images into a timelapse movie?

I have taken 30,000 still images that I want to combine into a timelapse movie. I have tried QuickTime Pro, TimeLapse 3, and Windows Movie Maker, but with such a huge amount of images, each of the ...
36
votes
14answers
115k views

How to split a multipage TIFF file on Windows?

I thought Adobe Photoshop could do everything, but apparently it cannot read multipage TIFF files. I have a TIFF file with four pages, and I need to edit one of the pages. Windows Picture Viewer can ...
30
votes
8answers
45k views

JPEG vs PNG vs BMP vs GIF

I would like to know which one of these formats requires less memory for the same quality of the picture, and what are the main differences between these formats.
28
votes
5answers
158k views

Windows 7: Image thumbnails fail to appear

All right, I've got a pretty strange one here. Since I installed Windows 7 on this machine some time ago, image thumbnails have never worked properly. For the vast majority of images, they ...
26
votes
5answers
17k 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.
22
votes
2answers
1k views

How does recaptcha know you aren't entering bogus translations of the pictures [closed]

From what I understand, Captchas are text that have been distorted by the application of filters, noise and other miscelaneous algorithms. Therefore, to find out whether the person's reading ability ...
21
votes
8answers
41k views

How to convert video to images?

How can I convert a video file to a sequence of images, for example one frame every N seconds. Can mplayer or ffmpeg do this? I have used MPlayer to grab screenshots manually but I would like to ...
21
votes
3answers
4k views

Is it possible to store arbitrary data in an image file?

Is it possible to store arbitrary data such as documents or a program in the form of an image file, such as a PNG image? My concern is that someone could encode data for use by malware into an image ...
21
votes
11answers
18k 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 ...
20
votes
6answers
29k views

Is there a way to open/import an SVG file with Photoshop CS2 or CS3?

Title pretty much says it all... Is there a way to open/import an SVG file with Photoshop CS2 or CS3? I am on Mac OS X but cross platform solutions are preferred. Illustrator can open SVG files, so I ...
19
votes
5answers
86k views

How can I create a PDF from scanned images I have in my folder? [closed]

I want something simple. I have a folder with 10 images and I would like to grab all of them, place each in a single "page" and into a single pdf file. Is there a simple GUI-based software for this? ...
18
votes
3answers
15k views

How to rotate images automatically, based on exif data

When I make pictures with my camera (Olympus E-520), in the exif data the orientation is stored. The standard image viewer on Ubuntu is displaying this images right. Windows viewer however not. Is ...
18
votes
11answers
4k views

Version control for images

When working with images, I tend to start saving things as image_001.png and image_002.png for different versions of the same image. Being a programmer, I know that that isn't really a good way to do ...
17
votes
12answers
64k views

How do I save an image PDF file as an image?

I have a PDF that contains a scan image of a document. I want to save the contents of this PDF as an image so that I can then run it through an OCR program that only accepts .jpg, .png, and .gif type ...
17
votes
4answers
3k views

Is there an image viewer that takes images on STDIN?

I'm looking for an image viewer that takes data on stdin and can be run like: cat image.png | imageviewer
16
votes
1answer
21k views

Is there a simple way to print multiple images on the same page in Mac OS X?

I'm looking for a simple way to print multiple images on the same page. The default image printing function in Windows lets me select how many images I want on each page. How do I do this on the Mac? ...
16
votes
1answer
787 views

Large image to clipboard freezes computer

So I was messing around with some height map images and found this one: http://upload.wikimedia.org/wikipedia/commons/1/15/Srtm_ramp2.world.21600x10800.jpg This image is 21600x10800 when I right ...
16
votes
3answers
52k views

Prevent Outlook 2010 Insert Picture resizing image

When I "Insert Picture" a JPEG in Outlook 2010 it automatically resizes the image and, I think, recompresses it too. I realise this would be useful for photographs or for people who try to email 1MB ...
15
votes
2answers
7k views

What is the largest size of a 640x480 JPEG?

I'm creating a data storage device that takes a certain number of pictures of the night sky over a couple of hours, and the pictures will be downloaded right after they are all taken. The memory card ...
15
votes
6answers
33k views

How can I mount a partition from dd-created image of a block device (e.g. HDD) under Linux?

I have an image of the entire disk created using dd. The disk structure follows: kent@cow:~$ sudo fdisk -l Disk /dev/sda: 750.1 GB, 750156374016 bytes 255 heads, 63 sectors/track, 91201 cylinders ...
15
votes
2answers
2k views

Unable to save images with GIMP

When I attempt to save an image with GIMP, the save fails and GIMP displays an error message Error while saving <filename>. Could not save image: The issue happens when I right click an image ...
14
votes
1answer
659 views

Why shouldn't we open an image in an email?

Most email clients do not display an image by default in the content of an email. But I don't understand this yet. How can displaying image job attack the computer?
14
votes
4answers
18k views

How do I extract a background from a Windows 7 Theme file?

Pretty obvious, How do I extract a background from a Windows 7 Theme file? I like the background pics from some of the themes I've downloaded, but is there anyway I can get the pictures (background ...
14
votes
5answers
747 views

Good tool for finding photo duplicates based on image data [closed]

Anyone know of a good (and preferably free) tool for finding photo duplicates based on the photos themselves? So, not filename, filesize etc., but how the photos look like. Would be nice if it managed ...
14
votes
7answers
7k views

Software to clean up photos of whiteboards and documents? [closed]

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 ...
13
votes
5answers
34k views

Copying PNG with transparency from browser shows a black background instead

When I copy a PNG image with transparency to the clipboard and subsequently paste it into Photoshop, Paint, etc. - the transparency turns to black. Is there any workaround for this? Is this a ...
13
votes
2answers
608 views

What steps are taken to create the optical illusion “Autostereograms”? [closed]

There are many images in which letters/text appear when you stare hard into them, called Autostereograms. I want to know how they are created. This is an example (here's the hidden image): I want ...
12
votes
3answers
6k views

Is it possible to view images in a terminal?

I have ssh access to my web server. I have some image files there and I would like to see a preview of. Is there a tool that will help me? Is there a curses-based viewer that will approximate the ...
12
votes
5answers
28k views

How do I burn .img files onto floppy disk?

I want to "burn" 3 DOS 6.22 floppy disks. I have 3 .img files but I can't "burn" these .img files onto a floppy. I get the message that the file is too big for the target. What tool can I use (I used ...
12
votes
5answers
38k views

How do I make an existing animated GIF loop repeatedly?

I have an animated gif which, as originally created, animates once then stops. I want to modify the image file so it loops forever instead. What free applications or command-line utilities for Mac OS ...
12
votes
9answers
19k views

IrfanView Linux alternative? [duplicate]

I'm looking for some Linux alternative to IrfanView (image viewer). At best, it should have all its features, the same controls (both mouse and kbd) or fully adjustable, and be as quick. In ...
12
votes
6answers
19k views

Editing JPEG EXIF properties

How can I edit EXIF properties of JPEG files on a Windows machine? Some image editing utilities handle the Rotation property wrong, which leaves me needing to make manual edits after rotating images ...
12
votes
10answers
21k views

Extract images in pdf without affecting the resolution?

My problem is I am tasked to extract images from a 640-paged pdf file. Majority of which are charts and tables with texts. Doing a simple copy and paste makes the image lose its resolution and the ...
12
votes
8answers
9k views

Free visual similarity image for a local hard drive search?

I'm looking for a desktop search engine for finding images on my local hard drive with high visual similarity. I've only found paid for ones so far. It could be Linux or windows one, either would be ...
12
votes
2answers
14k views

can I display a JPG or PNG to the framebuffer (/dev/fb*)?

I know I can capture the framebuffer in linux using something like cp /dev/fb0 ~/myimage and re-display that by coping back to the device like so cp ~/myimage /dev/fb0. What format is the framebuffer ...
11
votes
5answers
17k views

How do I mount a HFS+ dd image in OSX?

I had an HFS+ formatted drive that was going bad and wouldn't mount at all on OSX. I created an image using ddrescue on linux, and was able to save most of it. I can mount the drive and see the data ...
11
votes
3answers
43k views

How could I find out the path to the current desktop image?

I have Windows 7 displaying random images every minute from all of my photo directories and every so often there is one I really want to see again. How can I either always display on the screen the ...
11
votes
6answers
10k views

Imaging new hard drive in Windows 7 laptop?

I'm upgrading my Windows 7 laptop to a new hard drive. How can I clone or image the old hard drive over to the new hard drive, so that it looks like nothing has changed (other than the new hard ...
11
votes
5answers
9k views

Tool for comparing two images?

I have two images that are slightly different. (The second is actually generated by some manipulation in MatLab). I need some way to compare these two images.Some utility that can highlight where the ...
11
votes
5answers
19k views

How can I send an Outlook 2007 email containing a linked image?

I want to send an Outlook email that contains an externally hosted image, but I can find no options in the UI that lets me do this. I want to insert the image's URL somehow, and have it appear as an ...
11
votes
7answers
8k views

Why Outlook 2007 pasted images are larger than original?

I have been using Outlook 2007 for over a year with no image problems. Around September 1st, images that I paste into messages are enlarged in the messages. This happends with WinSnap, the Vista ...
11
votes
2answers
5k views

Photoshop: HSL Color picker plugin?

Is there a plugin that can let Photoshop use a HSL color picker, rather than HSV (which Adobe calls HSB)? In other words, any/all of the following locations could have an HSL option: Or perhaps a ...
10
votes
4answers
15k views

Is there any drawback to just renaming jpeg files to jpg?

A client sent me many jpeg files that I'd like to rename to jpg. Is this just a matter of renaming them, or should I open them with an image editing program and then saving them as jpg?
10
votes
4answers
16k views

What software works well for viewing massive TIFF images on Windows 7?

Today I saw an article about a half-gig, 24000 square-pixel high-res composite image of the moon. (This is a much smaller version of the image) I find astronomy interesting, so I thought I'd ...
10
votes
6answers
45k views

How to convert .jpg images to .eps?

How can I convert a .jpg image to an .eps?
10
votes
9answers
47k views

I'm unable to mount a DMG, getting a “no mountable filesystems” error

I downloaded a DMG of some commercial Mac software (CSSEdit) but I found that the DMG wouldn't mount. I tried another image from the same company, and then a number of images I had laying around from ...
10
votes
3answers
1k views

How can I browse white icons in Mac OS X Finder (Mavericks)?

I have bunch of white, transparent png icons in my folder and I find no way to see them clearly even if I change the background in view options (still white overlay on the image stays): I know ...
10
votes
2answers
451 views

Is there a way to display a real-time image histogram of all or part of what my monitor is displaying?

I am trying to adjust brightness/contrast in photo/video editing software that does not provide image histograms. What I would like is a piece of windows software that displays a real-time histogram ...