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JPEG is an adjustable "lossy" compression method commonly used in digital photograph. The most common filename extensions for images using the JPEG format are .jpg and .jpeg. Compare to alternative image formats such as TIFF and the various RAW formats.

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3answers
174 views

Does size reduction in a fine quality JPEG photograph introduce noise?

Does size reduction in a fine quality JPEG photograph introduces noise? I use Gwenview to reduce the size of the JPEG photographs. Does that cause some noise introduction?
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1answer
6k views

How to know when a digital photo downloaded from Facebook was taken?

A photo from Facebook. I am using MS Windows 7. I tried a few online EXIF viewers and downloaded a few. None of them show me the date the photo was shown, but some agree on the ICC profile data/time ...
2
votes
2answers
214 views

Why does Adobe Camera Raw 6.4.1 offer different White Balance for different photos?

I am using Adobe Camera Raw v6.4.1 to view my Nikon d-90 photos on my computer and when I go to change the White Balance, for some photos I only get the choices: As Shot Auto Custom Yet for other ...
0
votes
3answers
515 views

How can I work around Photoshop Elements 7's inability to open JPG files from my Android phone?

I copied some photographs that I took with my Android phone to my laptop. When I tried to open them with Photoshop Elements 7.0, I received the following error message: Could not complete your ...
23
votes
7answers
2k views

Why can I adjust the white balance of a RAW file but not a JPEG file?

I recently started setting my DSLR to save RAW files, and using Adobe Lightroom to process them. I still, however, use my little point and shoot camera a lot which does not have an option to save RAW ...
0
votes
2answers
215 views

Why are my Lightroom 3 developments displaying in some applications but not others?

I'm shooting timelapse photos in JPEG and Ive imported them using Lightroom 3. They were initially upside down so I flipped them around added some exposure and saturation adjustments. I selected all ...
6
votes
1answer
3k views

How do I decide between “RAW as Master” and “JPEG as Master” when importing RAW+JPEG into Aperture?

I guess this comes down to an Aperture question and a more general post-processing question. I've been shooting RAW+JPEG and importing both to Aperture with the RAW image set as the master. But I've ...
23
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5answers
2k views

Why don't cameras support JPEG 2000 format?

The original JPEG format was updated in 2000 to provide a variety of features including less artifacts, better compression and lossless compression. Why haven't cameras updated to use this new ...
3
votes
1answer
118 views

Is it possible to set the year instead of a complete creation date in a JPEG?

I use iPhoto to manage my pictures. Unfortunately I have many pictures from the 80s. These pictures are actually slides that I have scanned in during 2008. So my problem is that the creation date of ...
7
votes
2answers
755 views

Should I care about jpeg2000 (and does anyone else)?

I know the question is a bit subjective, what I'm after is if there is enough improvement in jpeg2000 and enough support in software (image viewers, browsers) to warrant using it.
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4answers
3k views

How to avoid jpeg compression artefacts when saving photos in web resolution?

When I save a web-resolution image (for example, 1920×1024px), flat areas tints often have damaged shades of color. I'm saving in Photoshop CS4 with quality 2 in standard mode, because I need the ...
5
votes
2answers
728 views

How to/Best Methods to Correct Washed Out JPEGs?

I have many photos that have that washed out look about them and some that are completely blown out. These photos are JPEG only and were not taken (or I do not have) the RAW file. I currently attempt ...
2
votes
3answers
4k views

Should I use RAW or JPEG for wedding photography?

I am about to shoot in a wedding ceremony and would like to know, Should I shoot in RAW or JPEG? I asked a photographer (outside the US) and he said converting RAW into JPG changes color (or ...
11
votes
6answers
938 views

Can in-camera JPEG have image quality advantages over (third party software) converted RAW?

Question about RAW advantages over JPG made me curious if somebody has examples where in-camera JPEG is actually image quality-wise better than RAW image converted in computer (possibly by third party ...
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vote
1answer
266 views

What are the differences of bringing RAW or JPEG into Photoshop?

Most of my images are in RAW format. When I bring an image into Photoshop, does it make a difference whether it's a JPEG or RAW? I understand the difference between JPEGs and RAW images. I'm just ...
4
votes
1answer
218 views

How do I export JPEGs from Lightroom without the grey/black box around each picture?

How do I export JPEGs from Lightroom without the grey/black box around each picture? This is really frustrating me. I know there has to be a way to do this.
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1answer
671 views

Why are colors different between RAW and JPEG when both are viewed in Lightroom?

Yesterday I was shooting images of trees that were wrapped in the beautiful baby lights that stores put in holidays. I noticed, when I went back home and checked my photos, that there is a slight ...
4
votes
2answers
4k views

Why does Photoshop show my JPEG files unusually large?

I recently opened a jpeg and a tiff of the same subject in Photoshop CS3. They both were made with a Nikon D300, and both had a file size of almost 35mb. If I checked the image info it said the jpeg ...
5
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3answers
414 views

Is there a one-click technique to create a “better” JPEG from RAW than the in-camera JPEG?

When looking around at HDR and Tone Mapping, and looking at the examples on the Photomatix homepage, I see examples that read: Result after applying the Tone Mapping tool (Original RAW file ...
17
votes
4answers
1k views

Does the dpi number reported by camera in JPG have any meaning?

I have two cameras, a 6mpix Panasonic FZ8, and 14mpix Canon A2200. When I compare shots from two cameras, one of differences I notice is dpi number that camera reports in JPG info: FZ8 reports ...
5
votes
2answers
1k views

How to reduce the effect of bright day light in the photographs?

This photograph was taken at around 9:30 AM. The sunlight was bright. I can't shoot in raw. I have adjusted the brightness and the contrast by which at least the tree is appearing brighter. Look at ...
5
votes
3answers
950 views

What settings should be kept in mind while shooting a jpeg photo in order for it to be edited later on?

Canon PowerShot SX210 IS doesn't support RAW format, so I don't have a choice w.r.t shooting in Jpeg format. Do we have some special camera settings that we shouldn't touch or should set in some ...
7
votes
2answers
967 views

Why is the pixel count of RAW images from the Panasonic LX5 slightly larger than the generated JPEGs?

I'm new to working with RAW images, and I'm capturing simultaneous RAW+JPGs with my new Lumix LX5, and using Bibble to view/process the results. I'm very surprised that the RAW images taken at 24mm ...
13
votes
8answers
2k views

Best way to import and save when shooting in both RAW and JPEG?

I currently use Picasa to manage my photos and when I import my photos I see "doubles" because I'm shooting in both RAW and JPEG. I'm currently moving my raw photos manually to a folder outside of ...
16
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3answers
2k views

Why does JPEG quality go up to twelve?

This question may be a little off topic, but why does the JPEG quality option go up to twelve? Here's the option in the Save dialog of PS: Thats a whole new definition of it goes up to eleven.** ...
11
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3answers
646 views

Should I convert RAW to jpeg before making an HDR?

I've been going back and forth with this. I've been looking more into working with some HDR to just get a feel for the process. I have a 500D and I'm using exposure bracketing to take 3 shots. 0, -2, ...
19
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2answers
12k views

How does Picasa process RAW photos?

How does Picasa decide how to process RAW photos? When I shoot in RAW+JPEG the two pictures can look dramatically different. Is it just converting the RAW files upon import, or is post-processing ...
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2answers
1k views

Get components stream Y,Cb and Cr in photoshop

Is there a way to get the component images corresponding Y, Cb, Cr in photoshop. I just need to combine them in layers to see how they form the original image.
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votes
5answers
1k views

Is sips lossless when used for JPEG rotation?

I am organizing a group of old images on OS X. Many are JPEG and predate the EXIF tag for camera rotation. Of course, many tools degrade the image (Question '10') if you edit the image. It is possible ...
8
votes
2answers
295 views

middle ground between RAW and JPG?

JPG files use 8 bits per color per pixel (I've never heard of any camera that uses the alleged 12-bit-per-color-per-pixel extension) and is a compact way of storing images. RAW files are huge but ...
14
votes
5answers
2k views

Fix photo timestamps?

I took a bunch of pictures, and when I loaded them onto my PC, I discovered the time on my camera was set incorrectly. Now this normally wouldn't be a problem...but I am combining pictures from ...