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dewolfxy
Mihov Image Resizer

This is a nice little freeware program that will batch resize your BMP/GIF/JPEG images as well as batch convert them. I find it useful for sending images to relatives by email. I grab the originals from my camera and batch resize them with this so they're small enough for email. This is useful if you need thumbnails for a web page too. It can also rotate images.
kevie
I use Image Resizer in PowerToys

http://www.microsoft.com/windowsxp/downloa...ppowertoys.mspx
dewolfxy
I've used that too, but for some reason I didn't like it much. I don't recall. This has more features, but I'm sure they can both accomplish the same things for the most part.
jlv
This looks like a decent program.

However, since this also does rotation (to correct images taken vertically on a digital camera), just be aware of one thing. He doesn't mentional at all if the program does lossless JPEG rotation, so it's best to assume it does not.

This is only an issue if you are rotating or cropping your original images without resizing. If you are resizing a copy of the image (and keeping the original intact), then this doesn't matter and don't read any further.

The problem is that if you've already had your camera save the image as a JPEG, then it's already applied a lossly compression algorithm. That means some data has been lost. For each further time you JPEG encode an image, you will loss more data, resulting in more noticable JPEG artifacts.

If you have JPEG's from your camera that need to be rotated or cropped BUT NOT resized, only do so with a program that does it losslessly (without having to reencode the data). Most tools that do lossless rotation also preserve EXIF data (which records the data/time you took the image, the ISO setting, the exposure, etc) embedded in the image.

AFAIK, none of the Microsoft tools in XP (scanner and camera wizard, the image preview, or the right-click context menu) claim to do lossless JPEG rotation. I'm not sure if they support it in their Digital Image Pro suite.

There are plenty of tools around that do this the correct way, since IJP (the Independent JPEG Group) has provided the code to do this for free for a few years. Various tools using this code are available for free on UNIX, Windows, and MacOS. Check out any of:

http://sylvana.net/jpegcrop/
http://sylvana.net/jpegcrop/losslessapps.html
http://www.friedemann-schmidt.com/software/exifer/
http://bermangraphics.com/coolpix/jpgrotate.htm
dewolfxy
QUOTE(jlv @ 10-8-04, 4:53pm)
However, since this also does rotation (to correct images taken vertically on a digital camera), just be aware of one thing. He doesn't mentional at all if the program does lossless JPEG rotation, so it's best to assume it does not.

This is only an issue if you are rotating or cropping your original images without resizing. If you are resizing a copy of the image (and keeping the original intact), then this doesn't matter and don't read any further.

*


Good points - I keep the originals and use this to make copies, as I'm aware of the lossy compression issues with JPEGs. I doubt the rotation is lossless, as you say, but it doesn't matter for my resized pics for emailing.
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