Questions tagged [jpeg]

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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71 views

Strange colour in my sky trail photos

I have a D200 and have been trying to take star trails but the photos are red on the corners of the photo. Do you have a simple answer that I am doing something wrong. I had it set for 2 hours.
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Film date stamp to jpeg metadata

I'm scanning a bunch of old prints from the days before digital photography. Some of those pictures have a date stamp in the lower right. Is there a tool that will check the corners for a date stamp,...
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JPG and file sizes - BASIC facts for dummy

Am I losing quality of the pictures when the size of the file drops? My daughter is sending me some JPG pics to edit for her. The file sizes start around 11MB & 3264x4928. After I do some mild ...
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Is it possible for jpg images of the same source have different file sizes but the same quality?

I have been using Google Photos as a way of backing up my photos. I noticed recently that they store two versions of any photo I upload, one with the original name of the file, say, IMG_20140328_1143....
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What does it take to get the Selphy to print an edited JPG?

We took a picture with a digital camera, and used GNU Image Manipulation Program (GIMP) to remove some stuff in the background, and tried to print it on our Canon Selphy CP1200. The print failed, and ...
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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 ...
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How can I detect upscaled photos?

I have a collection of JPEG photos, each 500 to 600 pixels on the longest side. How can I detect which ones have been algorithmically enlarged from a substantially smaller photo? An online ...
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5answers
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Should I use JPG or TIFF for high-quality prints?

I am putting together a photo book. I shot all the photos in RAW. The prints will be 300pi on 13x11 inch glossy paper. I am laying out the pages in InDesign, which doesn't allow me to import and place ...
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1answer
186 views

How can I configure Lightroom to use the JPEG from the camera for previewing?

I take photos in both RAW and JPEG. Sometimes I might apply a color style on the JPEG in-camera, but when I import the photos in Lightroom, only the RAW is visible. Can I somehow configure Lightroom,...
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Why do RAW images look worse than JPEGs in editing programs?

I've found that when you load a RAW image into an editing program such as Lightroom/Aperture, the image is usually worse than if you just took the image as JPEG. Now I understand that the camera does ...
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How to save JPEGs from GIMP 2.8 and higher?

At present I am learning GIMP 2.8 after getting the advice from this website to edit the photos captured by my Nokia N8. The problem is: I do not know how to save them in JPEG format in GIMP because ...
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will i lose data/quality converting my raw files to jpeg on my pc? [duplicate]

will converting raw files to jpeg be the same as taking a jpeg photo to begin with? or will I keep my raw quality converting it to jpeg post shoot?
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How to remove 'Program Name: Adobe Photoshop' from the metadata?

I've tried all the solutions from here as well as from stackoverflow, the tool mentioned (ExifTool) won't remove the metadata. I'd like to remove all the Photoshop information from my jpeg, leaving ...
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Is it possible to find out what compression ratio was used for a particular JPEG?

I have a couple of JPEGs. Is there a way to find out which compression level was used when encoding them? That is, were they encoded at level 60 or 90? The reason I'm asking is because I have a site ...
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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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1answer
179 views

Exporting All Metadata When Exporting JPGs & NEFs To Reduced Size JPGs

In Lightroom, when Exporting NEF and JPG files to reduced size JPGs, How do I get all metadata to export as well? Specifically, my exported files don't include Date Taken or Tags.
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Batch rename ImageDescription with Pattern for multiple JPEGs

I used IrfanView to rename holiday pictures from my girlfriend and myself to get them in order. I could arrange them and use pattern to add numbers infront of the filenames. The pattern I use for ...
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1answer
7k views

Color profile inside JPEG file

1) What is the best practice for color profiles embedded in .JPG images, for web? (non print) sRGB profile stored in .JPG file ? AdobeRGB profile stored in .JPG file ? no profile setting in .JPG file ...
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What to do with a jpg too warm? [duplicate]

I accidentally shot in jpg and I have some way too warm photos. What can I do with them?
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Create versions of originals and export as JPEGS with metadata?

I have a library of 20,000+ JPG images and I've now decided it is time to clean up the collection: sort, edit, crop, straighten, delete etc. So I have a few questions: By editing a JPG and exporting ...
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1answer
1k views

How to compress an image to a particular size in jpeg regardless of quality?

Scenario: I have an android app which captures images and sends over to a server. Till now I had been setting 50% quality. But with high end phones with better sensors and resolutions even with that ...
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How does Darktable compare to Adobe Lightroom for editing JPEGs?

I mostly modify JPG images taken from my Nikon camera. How does Darktable compare to Adobe Lightroom for this purpose?
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1answer
146 views

Will saving in RAW + JPG provide the same IQ result as saving them both separately?

Storage is cheap nowadays, and carrying a few extra SD-cards aint to heavy. Is there a real downside to this option? Besides filling up more memory and some extended loading times? The question is ...
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1answer
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Why is my frame stacked image showing a grid?

The following is an auto-equalised image of 200,000 stacked frames from a small web camera. All the frames are of a very dark grey uniform background, and the histogram mode is about -1.5 stops below ...
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2answers
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I shot using S3 and it's pixelated

I generally shoot L + Raw but this time, I was doing a shoot for a new company and for some reason thought that I could use the "S3" JPEG setting (720x480). They are using them for online. They have ...
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If an image is rotated losslessly, why does the file size change?

I was searching for methods of lossless image rotation and happened upon this question which explains it rather nicely: Are "Windows Photo Viewer" rotations lossless? So I created a 256×...
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How can I get my JPEG images to look the same in print as they are on screen?

Recently I took a landscape picture and had it printed in a photolab as I wanted to sell it. It was taken at sunset and although not the brightest lit picture it was still lit well enough to make for ...
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1answer
530 views

Maximum jpeg conversion size from a 24 Meg Nef File

Can you tell me how big a JPEG file I can create when converting a NEF file in Lightroom?
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6answers
23k views

How can I add a border to a JPEG photo without affecting quality?

I have a photo in JPEG format with resolution 4680x3120. I want to add a white border around this photo, turning it into a 5200x3467 photo (for printing reasons). Clearly, I am not altering or ...
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1answer
179 views

RAW processing steps [duplicate]

I'm novice in RAW processing. I know what a RAW file actually is but what are typical steps I need to do for RAW processing and getting output JPG file manually? Update: I want to get advices what ...
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3answers
2k views

Is it possible to do non-destructive JPG color correction?

I would like to perform color correction on my photos before printing so that my workflow will create reproducible prints. (i.e. the lab corrects my photos and I print them again later, they may be ...
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137 views

16-bit wysiwyg image? Not RAW [duplicate]

I like the dynamic range of RAW files, but I don't want raw sensor data, but I don't want 8-bit jpegs. What can I do to get the desired result? Request camera manufacturers to allow TIFF file ...
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Is there a middle ground format 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 ...
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Is there a quality difference between Lightroom and ImageMagick when converting RAW to JPEG?

Is there any quality difference between ImageMagick and Lightroom, when converting RAW files (for example, CR2) to JPEG in 100% quality?
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how to convert CR2 to jpg in batches on digital photo professional 4.1

how to convert a batch of CR2 to jpg on digital photo professional 4.1 Step by step please.
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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 format?...
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Why use JPEG instead of RAW?

Why would a photographer want to capture images using the JPEG format over an available RAW format? The obvious argument is memory card storage, but assume that my available memory card storage is ...
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1answer
765 views

Quality of image changes drastically after saving as jpg (choosing max quality) from raw

Why does quality of my image changes drastically after editing it (and saving it as jpg with maximum quality ) in photoshop CC RAW. Everything looks great until I save the image. Comparison of the ...
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1answer
975 views

Why are images exported from Lightroom 6 different from the preview?

I currently have Dell U2711 monitor with Dell U2711 ICC profile (Adobe RGB preset mode) Windows 10 Adobe Lightroom 6 CC Image from Fujifilm X100 in both RAW (RAF) and JPEG Done very little else to ...
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Podcast Cover Art Help! [closed]

My Photographer Shot in Raw with 885 × 1024 dimensions. I need this for a podcast cover at 1,400 x 1400 pixels -3,000 x 3000. Please help?
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569 views

What makes RAW formats better for manipulation than JPEGs or PNGs [duplicate]

So I've seen everyone saying that RAW format is much better for manipulation in photo editing applications like Lightroom than JPEGs or PNGs. While I read some posts here like this and this, I'm ...
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Why don't most cameras support PNG format?

I prefer PNG format to JPG, because JPG uses lossy compression. When I capture a screen in my PC or scan a picture or document in my scanner, I always save them as PNG format. If a camera could ...
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15answers
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Why store both JPEG and raw?

DSLRs often have the ability to store both a JPEG and a raw file. Given that the primary benefit of in-camera JPEG over raw is the smaller filesize, and that JPEG+raw is going to store even more data ...
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Make photos on Facebook nicer?

I upload photos to my Facebook page using the latest Lightroom. I'm wondering if there are some tips or tricks, or maybe hidden options on Facebook that makes the images served to the viewers higher ...
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4answers
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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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5answers
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Should I use Active D-Lighting when shooting Raw?

I understand (ref) that I can do my own post processing to get the same effect that Active D-Lighting gives. But does the in-camera ADL get applied to the raw image data or is it only done to the ...
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1k views

Quality of JPEG directly from RAW+JPEG versus JPEG embedded in RAW of RAW+JPEG?

When I use ImageMagick's identify command to look at the quality of the JPEG from my camera's RAW+JPEG mode, I see 95. When I use the same to look at the JPEG preview that has been directly extracted ...
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How to preserve image quality when exporting psd file to jpeg?

my psd file is 9900px by 6600px and I want to export it to jpeg for a website. When I try to export it to jpeg with 72ppi and lower down pixel dimensions to about 1000px by 750px, the image comes out ...
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1answer
1k views

How to recover original thumbnail of an edited image?

I would like to know if it is possible to recover the original version of an edited picture. The metadata of the picture in question indicates . "Hasthumbnail : False". So how is it possible to ...
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3answers
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How do I compress my TIFF files to JPEGs of a given size?

An online lab wants my large (over 100 MB) TIFF files as 50 MB JPEGs with a maximum of 80 megapixels for making aluminum 16x24 inch prints. What about final resolution? How do I convert from one to ...