 Darlene Christensen |
What's Going On With Resizing? OK..here's what's happening! After I upload my pics from the camera, and make any changes and improvements..make sure it's crisp etc....I resize to 8x10 ppi300 to see how it will look at that size (I frame and sell). Then I resize down to 440X308 150ppi for horizontal and 320x449 150ppi for vertical and upload to my website....that way when someone clicks to enlarge..they can see the whole image at once. Then I save in my photo file software. Now...when I go back in and resize the image BACK to 8x10 300ppi...it looks wacky. I mean it's no longer sharp and the pixels are funky. WHY????? Is there a certain procedure I should be using to resize? I mean should I change the pixel sizes first then the ppis? Or some other way? Thanks for your help!!! Dar
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Michael H. Cothran |
You really do need some guidance here! First problem - What's happening when you resize for your web images, is that you are throwing away ALL the extra pixels from the 8x10 file. When you save it (to your web sizes), all those pixels are gone forever, never to return. So when you try to resize to 8x10, you now have a teeny weeny little file size to work with, rather than the larger file size you started with! Second problem - Monitors can only "see" or display 72 ppi. You are spinning your wheels saving them to 150ppi. It serves nothing at all! Again, your monitor can ONLY DISPLAY 72 ppi. There is ABSOLUTELY NO NEED to save any larger for web use. Your pixel size is ok, just save them @ 72 ppi rather than 150. Hopefully, this should get you back on track.
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Darlene Christensen |
Michael...oh man am I sick! As I understand it..all the pics I've "resized" to the smaller sizes and saved I won't be able to print at 8x10's anymore! Well, I've just fixed myself good! It adds up to about 130 of my shots..everything on my website! Thank goodness I've got backup files (original-unedited) on CD's..but that means I'll have to edit them all over again! Oh I'm sooo bummed! It just goes to show a LITTLE knowledge is a DANGEROUS thing! So AFTER I RE-DO all of them I should save as 8x10 at 72 ppi? That will keep the file small (so as not to take up so much space on the computer)? Thanks soooo much for your help!!!
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Michael H. Cothran |
No, no, no. DON'T save your 8x10 to 72 ppi. You'll save it as you originally did to 300 ppi - later. What I'm talking about is this: The ORIGINAL file that comes out of your camera will open in Photoshop or whatever editing program you have, to a default 72 ppi, but at a very large image size - maybe 18x27 or 20x30, or something large. In case you have modified your camera software, it should open to 72 ppi, but many softwares do allow you to open at whatever ppi you want, only with an image size proportionate to the ppi size you choose. So just work with the file with whatever ppi it originally opens as without ANY resizing. Then 'save as' this file as a 'Master'. This is the file you will always begin with now. Once your master is saved, you can crop and resize it to your 8x10 @ 300ppi, add some unsharp mask, and 'save as' that with another name, and close it. Then re-open your master file again, and resize it to another size you want, add some unsharp mask, and 'save as' that, and close it, then keep doing this until you have all the file sizes you want. And any time you want a new size, ALWAYS use the master file. DO NOT resize from one of your already resized files - ONLY from the master file. If you're still in the dark here, email me, and I'll try to walk you through step by step. It may sound confusing, but it's really pretty straight forward once it settles into your brain. Michael
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Darlene Christensen |
Gotcha Michael (or is it Mike?)!! Soooo simple....DUH! The images from my camera upload to my computer at 300ppi. You had answered a previous question I had regarding how big to make my images on my website...using 72 ppi. I followed you advice..Then I just "assumed" (we all know how THAT goes) that I could save as 72ppi. What I was after..in the long run..was to keep my files small so as not to use up so much space on my computer. Saving my edited pics at 300ppi takes up more room. Now of course I see what happened! I got it now...I think! Thanks so much for your help! Darlene
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Diane Dupuis |
You should make sure to save your Master as a TIFF and not a JPEG...
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- Bob Cournoyer Contact Bob Cournoyer Bob Cournoyer's Gallery  |
Okay, this is where I get confused....I have my jpeg file, then I save it as a tiff...why does the file become 3 times larger??? I thot jpeg was compressed and locked (for lack of a better word) so why does the file get bigger?? Bob
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Peter K. Burian |
Robert: If an image file is mary.jpg, save the full size file as a TIF. It will be mary.tif You can then downsize the jpg file as you wish. After all, you will always have the full size mary.tif file. A tif file is huge compared to a jpeg file because the jpeg is compressed. That's not ideal because jpeg compression is lossy: you lose data in the process. (When you open the jpeg file, it is decompressed - and is full size again. The lost data is reconstructed, but not perfectly.) That's why your master file should always be saved as a tiff. No loss of data. But sure, it takes up a lot more space on your hard drive. Peter Burian
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- Bob Cournoyer Contact Bob Cournoyer Bob Cournoyer's Gallery |
I didn't know that. Thanks, I thot once compressed/always compressed. That opens a whole bunch of new windows for me....:-) Bob
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Darlene Christensen |
After uploading my images from camera to computer, I always save them as TIFF files @300 ppi. I then edit and save as TIFF under another name..since they upload as "Untitled 1" etc. I keep those original uploaded images on my computer until I've filled my CF card. When the CF card is filled (a 512)I take it to Longs (or wherever they can make a CD)and dump the images onto a CD. That way I always have the originals-"off site" so do speak. I can then delete the original uploaded images from my C-drive. It saves a bit of space and I don't have to worry about losing the originals if my computer crashes. After I've edited and made sure the image will print to 8x10 or 11x14 at 300 ppi..I then change the image size down to 5x3.5 or 1500px1050p..it gives me a file size of 4.51m which is a lot smaller than 20 m..the original size. I haven't had any trouble resizing back to 8x10 as long as I keep it at 300 ppi. I was just trying to get too smart with saving at 72 ppi! A hard lesson learned I'm afraid..but a VERY GOOD one! Thanks to all who have contributed to this thread! That's certainly how I've learned valuable information over the past year! Darlene
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Jennifer L. Bales |
This was a really really helpful thread! Thanks to alL! jen
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Pam Kliment |
what about saving as a psd file instead of a tif-would that be just as good and take up less room?
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