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01-15-2011, 06:41 AM   #1
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RAW then re-size

I shoot in RAW most of the time with my Pentax K100D. How do i re-size them to post pics in this forum or whenever there is a file size restriction on a forum?

01-15-2011, 07:08 AM   #2

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Methods for resizing and saving to JPG format work differently in different photo viewers/editors. What software do you use for viewing your RAW files?

In Google Picasa (a free download), you can just select your photos, then use File / Export Picture to Folder. That converts RAW to JPG and lets you specify the width of the JPGs.

(Note that I am using a K-R not a K100D. I found that I have to set my RAW camera format to DNG for Picasa compatibility. If I have the camera set to PEF rather than DNG then Picasa displays all of my photos in sepia tones.)
01-15-2011, 09:01 AM - 1 Like   #3
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I use this one, Faststone, for my resizing to jpg with my K100D. I like it because it has other capabilities other than just resizing. Oh, and it's also free. But this one only works if you're using a PC and not a MAC.

EDIT: FastStone reads both PEF and DNG. Since the K100D saves RAW as PEF you'll have no problem.

Last edited by photolady95; 01-15-2011 at 09:29 AM.
01-15-2011, 09:17 AM   #4
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If you are using a mac, you just import your photos into iPhoto and export to almost anywhere you want. It comes free, installed on the computer.

01-15-2011, 01:43 PM   #5
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NO Mac here. I use Photoshop Elements 7. I know that I go to Image--->Resize----->Image Size
But I dont know how to change the values if i want 1024 X 1024. Please help.
01-15-2011, 02:14 PM   #6
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QuoteOriginally posted by Leana Quote
NO Mac here. I use Photoshop Elements 7. I know that I go to Image--->Resize----->Image Size
But I dont know how to change the values if i want 1024 X 1024. Please help.
Ah. When you get to the Image Resize box, there's a line at the bottom that looks like it has nothing to do with what you want. It says "Resample Image: " and then a grayed-out options list that says Bicubic. Click on the box to the left of that line. Now you can enter new pixel dimensions at the top of the dialog box. There's an option to use percentages instead. There's a link between the width and height, which you can break to create squashed or skinny images.

The option line that says Bicubic tells the software how to resize the image, which involves throwing away or creating pixels. I don't know which is "best". Bicubic sounds really complex. Downsizing can create a slightly softer image so if you always downsize, try Bicubic Sharper, or a sharpening step afterwards.
01-15-2011, 02:25 PM   #7
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You say you want 1024 x 1024 but usually for photographs you want the longest dimension to be 1024 and the other dimension to adjust proportionately. If that's what you want then this should work in PSE 7:

In Photoshop Elements:
Open the .dng file. This will open in camera RAW.
Click "Open Image" This will open it in PSE 7
Select Image/Resize/Image Size
Make sure "Constrain Proportions" and "Resample Image" are on
Change your largest dimension to 1024 or whatever you want
The other dimension will change to keep the proportion correct
When this completes Select File/Save As/
Save as a .jpg. I use jpg quality of 8

If you really want 1024 x 1024 let me know I show you how to do that as well.

01-15-2011, 03:12 PM   #8
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Thank you for that! I will fart around with it tonight. I posted a pic in the January Contest and I know that it is too big.
01-15-2011, 04:21 PM   #9
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Elements also has an 'export as new file' option that allows you to resize and move to a new folder.

I keep folder named 'web exports' and deal with it that way, which allows me to keep my normal image library free of this clutter and only have to point my browser to one folder for uploads.
01-15-2011, 06:00 PM   #10
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Linux users on KDE enviro can just use right-click Kim.

I used a Digikam export from HS10 RAW TIFF - "bee3.tiff" - 28.9MB at 2664 x 2742 (the RAF RAW was 15.4MB)

Right-click, convert to JPG. The new JPEG was, "bee3.0.jpg", 6.4MB at 2664 x 2742. It also gives the embedded thumbnail, as "bee3-1.jpg", 18.7kb at 160 x 120.

Right-click the 6.4MB JPEG, and convert to WebExport at 640 x 450, becoming "bee3-0.jpg" at 40.4kb, posted below. (the WebExport at 800 x 600 is 60.4kb)

Total time (used timer) - 23-seconds.

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01-15-2011, 07:19 PM   #11
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First of all, there's a difference between resizing an image and cropping. Resizing means keeping all of the image, but just making it smaller. Cropping is cutting a small part out of a larger image, losing some of the image in the process. From the above posts, it is not clear to me that you understand the difference. Please forgive me if that sounds condescending. It isn't meant to be.

If you resize to 1024 x 1024, without cropping, you will distort the image. That is because your camera's sensor has a height to width ratio of 2:3. Elements will allow you to resize such an image to 1024 x 1024, which is a 1:1 ratio. The long side will be compressed. When you resize, there is an option to keep the aspect ration the same. If that option is selected, and you set the short dimension to 1024, it will automatically set the long dimension to 1540, which maintains the 2:3 ratio. Likewise, if you set the long dimension to 1024, it will set the short dimension to 682.

Secondly, you can't do either one to a RAW image. That is, you can't resize it and you can't crop it. You CAN do both and save the result as a new image format, such as TIFF, JPEG or BMP. The original RAW file remains untouched.
01-15-2011, 08:34 PM   #12

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noblepa in the post just above this makes some good points. Other posts implied it, but he clarified cropping vs. resizing.

I'll add that even if a forum had no size limits you would have to convert to JPEG or some other forum-friendly format. Most forums can accept JPEG but I've never encountered one that could take RAW/DNG/PEF.
01-16-2011, 01:39 AM   #13
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There is a lot of on-line help for Elements 7. This was the first hit from Google:

Adobe Photoshop Elements 7 * Cropping, resizing, retouching, and transforming photos
01-16-2011, 05:56 AM   #14
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Yes, I do totally get the difference between resizing and cropping but in the contest rules it states this......# The photo dimensions must be between 300x300 and 1024x1024 pixels

Having read that, I assumed the pic could be 1024 x 1024 exactly as it states. That is why the confusion on my part.

Last edited by Leana; 01-16-2011 at 06:03 AM.

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