Image degradation/pixelating when uploaded - help

12/24/2005 09:18:26 AM · #1

I am hoping someone can help me find out why my image degrades when I upload it... I do use the space saver mode when I upload to Dpc........ One of the questions I have is that I am shooting at the large/fine format which is the highest resolution jpeg format for my Canon 20D.. and when I look at the information attached to the file or bring the image up in photoshop, it states the image is at 72 dpi resolution.. is this the resolution the image should be at... I can change the resolution in photoshop (without resampling). Should I be changing the resolution to higher (like 267) before I upload it to my portfolio? It really bugs me that my images in my portfolia look like a bad scan.. any help will be appreciated ... Maggie

12/24/2005 09:26:33 AM · #2

You need to sharpen for web it seems.

//www.dpchallenge.com/tutorial.php?TUTORIAL_ID=26

//www.dpchallenge.com/tutorial.php?TUTORIAL_ID=4

Read those, but all you have to do is, open the resized and saved for web file, and then do some USM on it generally.

Remember, sharpening before resizing to 640xXXX will cause image artifacts.

Canon EF 85mm f/1.2L II USM

12/24/2005 09:28:36 AM · #3

ALso, looking at your front page images on your profile, the could use some contrast and saturations adjustments. Just a thought.

NstiG8tr

Canon EOS-5D Mark IV

12/24/2005 09:30:12 AM · #4

mine save at 72dpi also unless I change them. 72 dpi should not be the reason for the degredation of your photos when uploaded. It could be the manner in which you save them for the web that's degrading them.
What editing software to you use? All of the photos in my portfolio are at 72 dpi

12/24/2005 09:31:43 AM · #5

thank you for your quick reply...... now I have to read the tutorial to understand what all that means....one thing I did notice when I upload to this site, I use upload image, not print.. is there a difference? all comments appreciated ... esp ways to photoshop my pics. I don't save for the web, ..... didn't know I had to.. this really helps.. I want my photos to look their best.

Message edited by author 2005-12-24 14:34:01.

12/24/2005 09:33:57 AM · #6

Originally posted by dsmeth:

oops, meant to mention that, thanks dude.

Yeah, dpi and ppi only really matter in printing, monitors generally can't display above 72dpi.

If you want, I'll mess around with some of your stuff and post them up. I'm bored today. ;O)

Canon 12x IS USM (S3 IS built-in Lens) -- 36-432mm (35mm EQ)

12/24/2005 09:37:46 AM · #7

Thanks so much Wavelength... Bear_music thought my pics are scans and it's a good thing he said that because I dind't know they were degrading.... sure, play away with them but if I can figure out how to upload them properly, then it would be easier.

GeneralE

Canon PowerShot S3 IS

12/24/2005 09:41:20 AM · #8

If you are uplloading the full-sized image to your portfolio space, then I believe the site is re-sizing it for your for display.

Better that you should resize it yourself to DPC-entry size yourself as others have suggested, so you can control image quality.

tinmason

12/24/2005 09:45:29 AM · #9

As a test, try sharpening the image just a tad bit before submitting. I don't use save for the web...it's only function is to adjust color for the web as I understand it. No difference in 72dpi or 96 dpi when uploading images at a 640X480 resolution. I believe that only comes into play when enlarging images for print.

12/24/2005 09:48:49 AM · #10

Thank you thank you all........ I haven't been resizing my photos... I will now.. so that's the reason my photos are at such lo res? I am going to work on this and get it right.... the turkey can wait hehehe..

Canon EF 85mm f/1.2L II USM

12/24/2005 09:54:35 AM · #11

Originally posted by tinmason:

actually, save for web deletes the EXIF info so that you can better controll the file size also.

NstiG8tr

Canon EOS-5D Mark IV

12/24/2005 09:57:36 AM · #12

yep General prolly hit the nail on the head with that resizing before upload thing.

12/24/2005 10:05:15 AM · #13

I want to apologize for not reading the tutorials before creating my portfolio... it would have saved you good people time and energy.. you are all wonderful!

12/24/2005 10:06:43 AM · #14

Originally posted by MacClavey:

I want to apologize for not reading the tutorials before creating my portfolio... it would have saved you good people time and energy.. you are all wonderful!

Don't worry most of us are bored and jump at the chance to help :o)

Artifacts

Canon EF 24-105mm f/4.0L IS

12/24/2005 10:10:50 AM · #15

Originally posted by MacClavey:

I want to apologize for not reading the tutorials before creating my portfolio... it would have saved you good people time and energy.. you are all wonderful!

Don't worry... you could spend all your time reading tutorials and forum posts and not taking pictures if you thought like that all the time.

We are all here to learn. Doing and trying things is the best way to learn. Asking questions as they arise is the second best method. :)

Message edited by author 2005-12-24 15:11:12.

12/24/2005 10:11:50 AM · #16

Okay, here's what I had time to do so far (stinking boss keeps walking over)

Original

Edited

I punched up the yellows, and 2 sections of cyan's, and slid the darks to teh center a bit on levels. Light USM, have to be careful with small versions ;O)

12/24/2005 11:04:56 AM · #17

wow wavelength... it looks like the wave is on fire.... one of these days I will be able to pshop them good! Now that I know to resize the files I can put more surfing pics on my profile. I could only post 7 before.