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DPChallenge Forums >> Tutorials >> Using Photoshop to Prepare Photos for DPC Challenges
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Showing posts 26 - 50 of 109, (reverse)
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 09/13/2004 11:29:05 PM · #26
Thanks EddyG. While I haven't absorbed all of it yet, you explain procedures clearly and this should be of great help.
Alice
 09/28/2004 09:54:27 AM · #27
I found your article extremely useful... it resulted in a successful first effort at my preparing and posting a picture at DPC. I used the trial version of Photoshop Elements 2.0 to do the job, and was able to follow your recommended steps even though I had never used Elements or Photoshop before.

The only recommendation I'd make is that you make it clear at the top of the article what version of Photoshop you used in your step by step instructions. It did take a little while before I figured out that your instructions didn't apply precisely to my version of the program. Once I determined that, however, it was easy to find corresponding menu items and follow the process. I'd say that mine was a pretty good test case for the clarity of your article. Thanks for taking the time to post it.
 09/28/2004 10:03:55 AM · #28
I do not know how Photoshop behaves regarding jpeg, but most of the time using progressive mode can save space (ie for the same space increase quality).
 09/28/2004 10:16:27 AM · #29
Originally posted by EddyG:
Originally posted by GeneralE:
...alternative methods using other software could also be demonstrated.

If folks thought this tutorial was helpful, I was going to do something similar using something like the freely-available IrfanView to demonstrate how to resize in that software. I could also install Photoshop Elements or the demo version of PaintShop Pro and do similar tutorials for those packages. I just thought one giant tutorial for a bunch of software packages would get confusing fast.


Bolding above is MINE, not original poster's. It's the bit I want to express strong agreement with. Given that a tutorial such as this is really aimed at those who are not already familiar with using their chosen software application, being as specific as possible on how to achieve the steps detailed using that particular software is definitely useful. I think it's best to have separate tutorials for separate software when it comes to a task such as this one.
 09/28/2004 10:54:39 AM · #30
Great job Eddy! I'm curious about the 'capture sharpening' bit. Is this using USM? We all have our own methods for sharpening, but I save all sharpening 'til the end of editing the full size TIFF or PSD... Thanks again for your effort!
 09/28/2004 11:09:55 AM · #31
I'm a firm believer in separate capture and output sharpening. They are intended to do different things. For a good read that explains why in much more detail than I could, I'd suggest checking out this article by Bruce Fraser. Hope that helps!
 09/28/2004 11:25:34 AM · #32
I think it's generous of you to offer such a thing... but I'm betting the lack of interest is due to the fact that anyone who is saavy enough to figure out how to download and implement a new action in Photoshop is surely able to figure out how to resize an image properly :/

Originally posted by pearcer:
Bump. looks like no body is interested.
09/28/2004 11:59:35 AM · #33
wow..and I taught I new it all... Great tutorial and great help. Not only for the challenges, but for my online gallery.
 09/28/2004 08:05:42 PM · #34
A terrific job Eddy, as usual. Thanks!

09/28/2004 08:24:58 PM · #35
Wait I thought sharpening wasn't allowed in basic editing?
 09/28/2004 08:27:47 PM · #36
Originally posted by kyebosh:
Wait I thought sharpening wasn't allowed in basic editing?


It is permitted. From the rules:

Filters: The use of filters (or non-Photoshop equivalent) is strictly limited. Any filter or stand-alone utility designed and used to preserve the integrity of the image and/or reduce the effects of noise, scratches, etc, are permitted. These include but are not limited to the Sharpen, Unsharp Mask, and Dust & Scratches filters, and standalone image cleanup utilities such as NeatImage. However, no effects filters may be applied to your image, with the exception of Noise and Gaussian blur, the two of which are allowed. Any filter permitted by this rule must be applied uniformly to the entire image. Selective application of the filter is prohibited.

-Terry
 09/28/2004 08:29:20 PM · #37
ACK you're kidding, i've never sharpened a challenge entry cause I thought it was illegal!!! :-/
 09/28/2004 10:39:31 PM · #38
Originally posted by EddyG:
Post your comments, questions, and reviews for...
'Using Photoshop to Prepare Photos for DPC Challenges'
by EddyG


Nice tutorial, very detailed.

I don't mean to seem scrutinizing, but I just wanted to let you know about one technicality (more than likely OS version related)I noticed. It probably won't matter to most people because there are multiple ways to copy a file, but step 2 under "Copy Your Original!" says hold the "SHIFT key," which didn't work for me. On my system, the way to copy via that method is the "Ctrl" key.

Btw, I'm using Windows XP Professional w/ Service Pack 2.
 11/29/2004 07:40:38 AM · #39
after a bit of luck and many, many disapointments i decided to pay attention to my downloaded pics.... with the view of improving them based on my feedback received.

i immidiatly saw a vast improvement... i could not believe my eyes what had happened to my calender snapshot.....! now i must say this, the author of this tutorial should be given a ribbon on merit. great work, great help. thank you so much

question, what about a similar tutorial in simple language on "advanced editing". thanks .
 01/06/2005 09:31:19 PM · #40
Eddy- Great tutorial. I am still a newbie and have only submitted to one challenge so far(MECHANICAL) and ranked 80th out of 243. Not bad but all the commenters said I would have done a lot better had I increased the size of my image. Next time I will study your tutorial. thnx a mil.
 01/06/2005 11:01:19 PM · #41
Great job Eddy!

Did notice two little errors near the end. They are both in the Save For Web section.

First:
When you discuss the tabs of the Save for Web interface, you use 3) twice (for the 3rd and 4th tabs).

Second:
A bit lower you state "The preview on the right side of the Save for Web dialog is now an accurate representation of how your photo will be saved." If you are referring to the image we see, shouldn't it read "The preview on the left side of the Save for Web dialog is now an accurate representation of how your photo will be saved."?

Once again, a great tutorial. I learned quite a bit. Thanks.
 01/07/2005 03:02:30 AM · #42
Originally posted by Beagleboy:
Great job Eddy!

Did notice two little errors near the end. They are both in the Save For Web section.

First:
When you discuss the tabs of the Save for Web interface, you use 3) twice (for the 3rd and 4th tabs).

Second:
A bit lower you state "The preview on the right side of the Save for Web dialog is now an accurate representation of how your photo will be saved." If you are referring to the image we see, shouldn't it read "The preview on the left side of the Save for Web dialog is now an accurate representation of how your photo will be saved."?

Once again, a great tutorial. I learned quite a bit. Thanks.


You are correct on your first point and incorrect (perhaps just partially) on your second. If you re-read that section you'll find, "This tutorial will assume the "2-Up" tab is selected." With that selected the orignal is on the left and the preview is to the right of it.
 01/07/2005 04:39:58 AM · #43
Great job, very thorough.
It's already been mentioned in this thread but not picked up on, that saving as progressive will allow for a smaller filesize for the same amount of detail. I've never really understood this... can anyone explain this phenomemon? And in this tutorial, why not save as progressive?

Message edited by author 2005-01-07 06:26:01.
 01/07/2005 07:05:55 AM · #44
Originally posted by TechnoShroom:


You are correct on your first point and incorrect (perhaps just partially) on your second. If you re-read that section you'll find, "This tutorial will assume the "2-Up" tab is selected." With that selected the orignal is on the left and the preview is to the right of it.


I stand corrected. You're right. I was too sleepy when I wrote that. Hats off to you.

Message edited by author 2005-01-07 07:08:09.
 01/07/2005 08:33:11 AM · #45
Originally posted by Beagleboy:
When you discuss the tabs of the Save for Web interface, you use 3) twice (for the 3rd and 4th tabs).

D'oh! Thanks for catching this.

Originally posted by BobsterLobster:
It's already been mentioned in this thread but not picked up on, that saving as progressive will allow for a smaller filesize for the same amount of detail. I've never really understood this... can anyone explain this phenomemon?

Sorry, I can't offer any insight into why sometimes "progressive" seems better; the notion that "progressive is smaller" contradicts this link: "Progressive JPEG files are often slightly larger than non-progressive ones" and this lecture: "The file size of images JPEG encoded this way are slightly increased." (at the very end)

Originally posted by BobsterLobster:
And in this tutorial, why not save as progressive?

A couple of reasons. First, lowest common denominator. Not all JPEG decoders can handle progressive JPEGs. Most current web browsers can, but that was not always the case. Second, because of the nature of progressive JPEGs, images are divided into a series of scans. The first scan shows the image at the equivalent of a very low quality setting, and therefore takes very little time to transfer. Following scans gradually improve the quality. For someone on dialup, they may see a challenge entry in one of the intermediate scans and cast their vote based on a visual representation that is not the final quality. (Also, I'll just mention that each scan takes the same amount of computational power to display as the entire baseline JPEG file would, so progressive doesn't make sense in cases where the decoder could be slower than the communication link, e.g., handheld devices.)

Since this was a tutorial intended for new users, I felt it was best to suggest settings without potential issues, and I didn't want to complicate the tutorial more than it is already was by discussing more options the reader would need to consider. If anybody feels progressive is a better choice, then of course they are free to use it, but I didn't think it was an appropriate recommendation for this particular tutorial.

Message edited by author 2005-01-07 08:35:50.
 01/07/2005 09:08:36 AM · #46
Fair enough... maybe I might change my habits. Weird though, as I find progressed JPEGs are always smaller in filesize.
 01/10/2005 04:29:21 PM · #47
Gimp? Photoshop? Neatimage? Does anyone think my photos are challenge ready? Ive been editing them on Image Mix 1.5
URL: // //photos.yahoo.com/troiatony
 01/10/2005 05:03:39 PM · #48
Originally posted by RulerZigzag:
Gimp? Photoshop? Neatimage? Does anyone think my photos are challenge ready? Ive been editing them on Image Mix 1.5
URL: // //photos.yahoo.com/troiatony


Your images are all 480 on the long side. Here they allow you another 160 pixels to work with. I for one and many others seem to agree, bigger is better. Other than that they seem fine and you shouldn't hesitate to enter.
 01/19/2005 02:46:21 AM · #49
I have been sharpening using "focus magic" on the lightness split of an hsl split in jasc paint. I do this before and after I resize to 636x424.
I use 636x424 as it is nearly max submission size, yet is evenly divisible by 6x4, my preferred crop format. I then use a jpeg compression with no chroma subsampling to get under 150k.
 01/28/2005 10:24:25 AM · #50
Great job, very thorough with this tutorial. I am still a newbie and tried to submitted a photo for a challenge, but could not get it resized correctly. I have been trying to decide on the best software to purchase and this will really help. Thanks
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