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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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What image quality is lost when re-saving a JPEG image in MS Paint?

Has anyone ever noticed that if you open a image in mspaint (.jpg, .jpeg) and then just save it, the image size is reduced by many folds. I use this method to reduce the file size. However, I am not ...
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3answers
3k views

Should I use “Super Fine” or “Fine Quality” setting on Samsung S1050 camera? [duplicate]

I have a Samsung S1050 camera. There are three quality settings - Super Fine, Fine and Normal, which I believe relates to the JPEG compression level. I have mainly used Fine in the past, but wonder ...
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2answers
697 views

How to scale down images in Lightroom while maintaining quality?

I am working with a product photographer who is having issues understanding dpi and resolution. She is shooting products to go onto a website using a Canon 5D and an ortery box. I have asked her to ...
4
votes
3answers
1k views

Does JPEG-to-JPEG export Lightroom reapply compression?

I want to crop a JPEG file in Lightroom and export that cropped file to another JPEG so that I can e-mail it. The exported JPEG should have the same quality as the original. I don't have the RAW file ...
2
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1answer
245 views

Does Lightroom export white-balance temperature and tint value to JPEG metadata?

When I export a JPEG from Lightroom 3.6, is the white-balance temperature and tint value written in the JPEG file somewhere? Could I later take that JPEG and see (in the EXIF for example) what the WB ...
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2answers
300 views

Is there an quicker method (script/plugin) to export sidecar JPEG from Lightroom?

When I import RAW+JPEG in Lightroom I uncheck the option "Treat JPEG files next to raw files as separate photos" because I don't like the clutter this causes. Sometimes I do want to have a sidecar ...
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2answers
239 views

How do I convert/re-compress select photos in Lightroom in-place?

As my Lightroom catalog grows there are some photographs I would like to preserve, but where I don't need all the editing latitude offered by RAW. I know I can convert them to DNG, but are there ...
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3answers
220 views

How can I reverse-engineer the RAW conversion settings used in a JPEG image?

I've lost my Lightroom catalog during OS migration. I have couple of JPEGs developed from RAWs and would like to put few more JPEGs from other RAWs in similar mood. Is there a way to reverse engineer ...
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3answers
250 views

Why does LR seem to build a preview for JPEG's as well?

I am trying out shooting RAW+JPEG to see if that workflow is what I want. I am surprised to see that Lightroom still shows the "Loading" text when I zoom in on an unedited JPEG file. I expected that ...
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6answers
6k views

What quality to choose when converting to JPG?

When you export a picture to JPG you can normally choose its quality in a 1-100 scale. I like to keep a good quality but it wouldn't make sense to keep a JPG that will be almost as big as the original ...
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3answers
2k views

How can I easily replace raw files with jpeg format in Lightroom?

I only shoot in RAW, but for a normal travel trip I don't want to keep all photos in RAW because they occupy a lot of storage space. Is there a plugin in Lightroom to click a photo and convert the RAW ...
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4answers
519 views

Online Storage Options [duplicate]

Possible Duplicate: What options are there for good, cheap online backup of data? Prior to 2012 I'd been shooting jpg files and uploading them to Phanfare.com (which allows unlimited ...
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2answers
2k views

What software raw converter can convert from .raf to .jpg, replicating the Fujifilm in-camera raw conversion algorithm?

Why I ask for software To perform batch conversion of many existing .raf files to .jpg. Why I want Fujifilm's algorithm, specifically I have tried Lightroom and Silkypix, and both fail to give ...
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1answer
1k views

Losslessly batch convert many JPEGs to sRGB?

Recently I came across a bunch of weird JPEGs; here's one of them. In Firefox 16.0.2 and ACDSee it looks much more vibrant: However in Internet Explorer 9/MS Paint/Paint.NET 3.5.10 (on Windows 7 ...
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2answers
705 views

Should I shoot in RAW or Fine JPEG [duplicate]

Possible Duplicate: What are the pros and cons when shooting in RAW vs JPEG? I am a beginner hobbyist and am a little overwhelmed by all that is involved with DSLR photography. Having ...
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3answers
989 views

Why do I have to convert RAW files to JPEG to open them? [duplicate]

Possible Duplicate: How do I get started with RAW photography? I am a new to RAW shooting and recently bought a Nikon DSLR. I find that only the software which came with the camera can open ...
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1answer
159 views

What does it mean to brighten an image?

Courtesy of my optometrist, I now have images of my retinas. However, the images are a bit dark. I have RGB values for each pixel. In this setting, is brightening the image equivalent to increasing ...
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4answers
131k views

What are the optimal JPEG settings for high-resolution Facebook photos?

With the current facebook photo uploader, what are the optimal settings for uploading high-resolution photos. I process my images in Adobe Lightroom. I'm aware of a similar question asked in the ...
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1answer
413 views

Help! I have corrupted Jpeg files and I want to get them back to normal!

Ok, so here's what has happened. I was in the middle of uploading the photos from my Sony memory stick (I used two different sony cameras with the same memory stick) of my vacation, onto my computer, ...
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2answers
3k views

How to identify photoshop-edited files

If I have saved an image in JPG format after doing some edits, is there a way to identify that it is edited with Photoshop?
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1answer
326 views

How can I export TIFF images to JPEG with no adjustments, using Lightroom?

I use Lightroom (version 3 now, probably 4 soon) to work with my raw images. When exporting to JPEG, Lightroom applies a number of adjustments, even if I leave all the settings at the default. This ...
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3answers
4k views

Why are my recovered images only 160x120 pixels?

I am trying to recover some lost images, and with all the programs I've tried, some of the photos resulted to be in a 160x120 pixel resolution. What does this mean, and is there any possibility to ...
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2answers
320 views

Raw versus JPG Images with a DSLR [duplicate]

Possible Duplicate: What are the pros and cons when shooting in raw vs JPEG? For typical family photos, with a Nikon D5100 DSLR, is there any reason to shoot RAW images rather than the ...
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5answers
849 views

Is there a way to export from lightroom to multiple formats simultaneously?

I frequently need to photograph my wife's textile works and output the results in several formats. She wants high quality, large jpegs; tiffs; and smallish jpegs for her web site, all of which go into ...
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2answers
3k views

Is there a way to recover corrupted JPEG files?

I'm wondering if there is a way to recover corrupted JPEG files. They got corrupted because I deleted a folder for error and I promptly recovered it with a recovery software. Most of the photos are ...
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5answers
1k views

What is a simple and effective method to sharpen for web output in Photoshop?

In Photoshop, I've got a master PSD image file with all mask and adjustment layer treatments, but no sharpening at all. I save for web and create a JPG at 1200px. Now, I bring that file back into ...
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2answers
408 views

Good compromise on quality/compression for hi-rez photographs?

My Nikon D90 dumps out photographs that are 4288 x 2848 @ 300 DPI. They're about ~3 MB in size. I'm an amateur in every sense of the word. I don't know what 75% of the camera settings do. I'm ...
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3answers
4k views

Is there are any difference in quality between Large Fine JPG and converted NEF?

Assume that I do not want to do any post-processing, such as white balancing, etc. I would like to preserve the best resolution (for possible cropping). So the question is: Are there any quality ...
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4answers
5k views

Is Lightroom overkill for a JPG-oriented workflow?

I am a passionate not a professional, I shoot most of the time in jpg because: I usually don't have the time to process raw raw takes a lot more space (and I feel my D700 jpgs are huge already!) ...
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2answers
3k views

Why do I get two JPEG files instead of RAW+JPEG when transfering to my computer from my Nikon D5100?

I have a Nikon D5100 and I want to shoot RAW and JPG at the same time. I select RAW+N (RAW plus Normal Size JPG). Now when I export the shots to my computer I end up with two files called DSC_0123 ...
3
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1answer
421 views

JPEG XR Plugin for Photoshop Elements 10?

I think I took a neat picture of a butterfly that I just used PSE10 to cut out of its background. Now, I want to package the butterfly as "free" clipart using appropriate tags to preserve my ...
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1answer
654 views

How do I evaluate a camera's JPEG tone curve options when the manufacturer only provides flowery prose?

There aren't many options for RAW development for the Fujifilm's X-Pro 1 because of its unique sensor layout. However, Fujifilm has clearly spent a lot of time working on the in-camera JPEG results, ...
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2answers
6k views

Why do my sRGB exports from Lightroom look different from RAW files shown in the program even though my monitor can only show sRGB?

I have read tons of docs about color management over the Web, but there is something I can't understand. I have a screen that can only render the RGB color space. It is very well calibrated using ...
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3answers
2k views

How to delete “unused” raw files which have no .jpg match?

I shoot RAW+JPG, namely NEF and JPG. After viewing sometimes hundreds of images (using a simple program) and deleting the JPGs, I have many unnecessary leftover NEF files. If there was a script to ...
2
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1answer
603 views

Does reducing JPG resolution decrease, increase, or have no effect on image quality?

I'm getting ready to download a bunch of images from microstock photo agency Dreamstime. I'll eventually want most of the images in the 400x300 pixel range for my website when I'm done working with ...
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2answers
3k views

Pentax K-5: Is it worth using the Premium JPEG quality setting?

Similar: How do I choose which resolution (megapixel) and compression (normal, fine, superfine) to shoot in? The Pentax K-5 has a JPEG quality setting called "Premium", denoted by four stars, which ...
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3answers
345 views

What is the difference between the different ways to export JPEG files from Photoshop?

Photoshop allows you to save the processed image as JPEG in two ways. Save As and Save for web. I have observed that Save for web gives more options like converting to sRGB etc. I have also observed ...
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1answer
597 views

Which Windows raw image viewer can only show jpeg, but on delete both raw and jpeg?

I'm searching for an image viewer with the following features: (situation is, that both jpeg and raw are saved) windows (7) support when clicking through pictures only show jpeg when deleting photo, ...
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votes
3answers
182 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 ...
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3answers
536 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 ...
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2answers
219 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 ...
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votes
2answers
3k views

How to import metadata from extermal .xmp sidecar file when importing .jpg files into Lightroom?

I have thousands of image files that I want to import into Lightroom. Some of the files are .nef, some are .jpg, .tiff, and other formats. If I have file1.nef and also have file1.xmp in the same ...
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votes
7answers
8k views

How can I easily convert a large number of pictures from RAW to scaled down JPG?

I have a collection of shots from the same session in RAW and want to covert all of them to JPG. Each one should have a curve applied, then be scaled and sharpened using the same settings. What is ...
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1answer
120 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 ...
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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 ...
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2answers
837 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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6answers
7k views

What are jpeg artifacts and what can be done about them?

I know JPEG is a "lossy" compression algorithm that discards information in order to save space. What is the visual impact of this? I've heard of "JPEG artifacts". What do these look like? Are there ...
2
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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 ...
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2answers
770 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 ...