I don't want to change the physical dimensions, I just want to reduce the size of the file. The digital camera I just bought is set at the smallest image--about 280 kb. What I have to do now is take a rectangular screen shot of the image. The new image is usually around 65k. Can I reduce it without using this clumsy technique. How about photoshop or gimp?
The people have spoken. I'm a nitpicking dick. Woo! 8757 Posts 1/04
Posted - Feb 28 2008 : 1:21AM
Try something much simpler. Get freeware program IrfanView. Open the picture. Then go to "Save As." This window will open: Slide the slider however far to the left you want and the size will be smaller.
You do realize that, when you reduce the file size, you are also reducing the image quality, right? I always keep my original image files... the larger the better. BUT, I will also make copies of files in different sizes and/or file sizes for special purposes (ex: reducing something to max 600-pixel width to post to ADT, or creating a reasonable JPEG of something for posting on the internet and/or sending with e-mails). If your purpose is to reduce file size to free up hard drive space, I'd also recommend burning your original files off onto DVDs or CDs -- which are dirt cheap -- so that you don't just discard them after creating your reduced-size images. FYI, I use Adobe Photoshop Elements (less than $100 everywhere). It allows me to do anything in terms of scaling, sizing and formatting that you can think of. Plus, it allows you to easily make corrections to images that make "all the difference in the world"... particularly to images you (and most of us amateur digital camera users) take yourself. One example: I took some pictures of some friends in the lobby of the Polynesian hotel at Walt Disney World. the lobby space is huge and dark and the flash on a camera doesn't help that much. But, tweaking the pics by lightening them and making minor color corrections made "all the difference." Works well with the over-saturated porn pics (the red skin) and screencaps put out by too many industry "professionals" too
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nietzsche Deactivated User
5470 Posts 8/03
Posted - Feb 28 2008 : 10:48AM
OK but when I take a screen cap of the image it's always about 1/4 the size on the disk, but exactly the same size and quality visually. I use gadwin for the screen caps; you can capture exactly what you want with the cursor.
Our image uploader will automatically resize it for you though maybe not as nicely as Photoshop or other programs will. BTW, if you use the multi-image uploader it will shrink to 1024 px wide. The single image uploader shrinks to 800px.
I use imagicon, another freeware program. I've never used IrfanView. Imagicon might not give you the same level of editing precision as IrfanView, based on Leyden's screen cap, but it is excellent for working with large batches of photos. So, say, if you had a hundred photos that you wanted to put on the internet, and you wanted to reduce the file sizes yourself so it didn't take forever to upload them, you would open imagicon, click on "options" and then "save mode." You would then choose what file type and quality to save them as, and you would almost certainly want to check on appending something like "edit" onto the end of every filename, so that you wouldn't overwrite the originals. After you had that all set up, you would then just drag and drop your original files (neechpic1 to neechpic100) into the imagicon window, and magically neechpic1edit to neechpic100edit would appear in the same folder as the originals, for you to use as you saw fit. The version I still have is 1.8, but I see that they are up to 2.4 now. http://www.download3000.com/download_9302.html
What I've found is that, by re-sizing pics myself, I can control what the final image will look like far better than relying on having it automatically resized (not that that isn't a very useful function to have when posting to ADT). Very often, I can crop out the exact 600 pixels I want to post (so that I don't have to reduce picture quality at all).
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nietzsche Deactivated User
5470 Posts 8/03
Posted - Feb 28 2008 : 1:59PM
I've been using irvanview for years but had never paid attention to that feature [knuckleheade]
This isn't exactly related but I just found this kickass little free program called photoresize400. You download the program to your desktop as photoresize400. exe You drag and drop a picture file on the desktop icon and it resizes a copy of it to 400 pixels wide while maintaining the aspect ratio. Here's the cool part- you can copy that program to another icon and rename it "photoresize100. exe" or "photoresize154. exe" and whatever value you use in the filename is the width of the new image in pixels. So simple a mongoloid can do it. Here's the link. This is the best freeware I'v found in a long time.
in photoshop you can reduce the size by ticking "save for web" & then a window will pop open with the original on the left & the one you are manipulating at the moment on the right hand side.
This is true but larger file sizes don't always mean perceivably superior images. You can slide the "quality" gauge down a surprising amount before you start to see serious degradation. What I usually do is save the same image at various sizes in a test folder and scroll through them with Irfanview. If I don't see noticeable degradation, there's not much point in having a larger file size unless it's a priceless family photo or something.
Of course. This is why I suggested burning the original large files off to CDs and/or DVDs and keeping them. For whatever it's worth, I make these "perception" calls all the time on IAFD. I have found that I am satisfied with roughly 15-KB files for the 17 hex 200 pixel headshots we add for performers. Other admins are satisfied at different quality levels. Basically, I found no worthwhile benefit for a 30-KB file (over the 15-KB I use) for the pics we post. I also am not satisfied with the quality of the pics that get down less than 8/10-KB. I find it very noticeable at that point (and we no longer need to squeeze pics that small any more to accommodate bandwidth issues and dial-up users). BUT, you better believe I keep the original pics that I create headshots from in their original larger sizes for my own files. Adobe Photoshop Elements (what I use) allows you to "save for Internet" (which automatically creates a smaller JPEG file optimized for the Internet, than if you were just saving it as a regular JPEG file) and allows you to choose any quality setting (in increments of 1-100%).
No joke. That's a function of the Rsizr program I linked to above. It does a lot more than just shrink images. It's a full featured photo editing application that runs over the web using a Flash application.