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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 is the relation between image file size and image quality? [duplicate]

Is small image file size means low image quality?what is JPEG image file size of 5d mark iv .Can we achive better image in small image file size?
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2answers
31 views

What JPEG settings for projection with Epson EH-TW5210?

I shoot in raw and edit with Lightroom. What settings, such as resolution and aspect ratio, should I use to export JPEGs for presentation using an Epson EH-TW5210 Full HD 1080p, 1920 x 1080, 16:9 ...
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2answers
69 views

Editing jpeg with Windows Photo Viewer gives strange results

modifying jpeg images from my Nikon D5500 with Microsoft Photo Viewer 6.1 (Windows 7), I am experiencing strange effects. I would like to understand if I am degrading the images or not. When I rate ...
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0answers
49 views

How to delete RAF files for which there is a corresponding JPG? [duplicate]

How can I delete RAF files for which there is a corresponding JPG on MacOS? What I've tried so far: The following solution by Rob seems just what I need! I replaced the extensions in the script to ...
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3answers
3k views

Remove “quality” property from JPG

I noticed some photos missing "quality" information in their metadata using ImageMagick's identify command identify -verbose image.jpg How can one remove this info? This is one example
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3answers
93 views

Why does NEF file get washed out/highlights while my JPG look normal? [duplicate]

TLDR. is just the title. I know nothing about photography, sorry. My dad has a d90 he never uses, so I use it to take photos when I need them for something. Anyways, I put it on raw mode. when I ...
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3answers
91 views

Assuming no editing, what's the difference between in-camera jpegs and lightroom jpegs? [duplicate]

I have a Canon 6D. I usually shoot RAW + JPEG. I shoot RAW so I have the option to edit, but I don't actually edit most of my pictures. I've noticed that if I just import into Lightroom and export ...
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4answers
4k views

What factors cause or prevent “generational loss” when JPEGs are recompressed multiple times?

For years, I've believed that recompressing JPEG files multiple times would gradually degrade its quality until they are an unrecognizable mess, the way making photocopies of photocopies does. This ...
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0answers
85 views

JPEG2000 File Format [closed]

I was working on a project that required using Intel's IPP libraries to convert an image in BMP to lossless JPEG2000 format (.jp2). I went through a book on JPEG2000, and based on what I understood ...
1
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3answers
196 views

Printing digital photos: why do (most it seems) print shops only handle PDF not raster formats like PNG?

I am in Sydney, Australia. My otherwise very helpful local print shop only handles PDF (with limitations as described in this forum posting). I have so far not found any print shops in Sydney that ...
2
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1answer
95 views

regarding image transfer [closed]

I have this client that is having a very frustrating time. I took some pictures for their clothing line. I formatted them for social media posting and copied them to a USB. I gave her the USB and for ...
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2answers
279 views

How to know correct exposure for RAW shooting when camera show JPEG Histogram

I heard that RAW Data is not the rendered data, which means it can’t be influenced by white balance, saturation, and all other settings. I believe that “RAW Data” is influenced by the intensity of ...
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3answers
494 views

Is it not ideal to save image as PNG for printing?

So the scenario: I want to order a print of one of my images. It is a special image and will be relatively large (a couple of metres) so I want it to be perfect as possible. I have the RAW file, ...
3
votes
1answer
232 views

Coolpix P900 artifacts

Although I declare myself very satisfied with my Nikon Coolpix P900, I've had in my recent trip in South America numerous pictures blurred by a random artifact, and I would like to know how to avoid ...
12
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2answers
1k views

Why does the histogram of an image depends on the software that opened it?

If I open a raw image in Photoshop and Paintshop pro their histograms and their look is different. However, if I open a Jpeg image in both Software, then their histogram and look is the same. What ...
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1answer
159 views

How can I make sure my photos aren't damaged after copying them from a faulty SD card?

I’ve copied pictures from my faulty SD card. Most of the photos seem to be ok, but some have big gray parts where originally the photo was. How can I make sure that all the photos that seem to be ok, ...
3
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1answer
178 views

How to copy images without losing their size? [closed]

For a project it has been specified that my images need to be at least 6MB. However, whenever I copy or move them around they dramatically decrease in size - and that is even before I have edited them ...
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2answers
238 views

After soft-proofing in Lightroom, which color space should I embed with the exported JPG?

Let's say I've loaded my print shop's ICC profile for the printer/paper/ink combination I'll be using into Lightroom, I've soft-proofed the image in the Developer module with said ICC profile, and I'm ...
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4answers
287 views

Why does increasing the dpi of an image on export from Lightroom not increase the file size? [duplicate]

I have a Nikon D3300. RAW images are usually 25-28 MB at a resolution of 6000 x 4000. I exported from Lightroom at Quality: 100; DPI: 240. The exported JPEG turns out to be around 12 MB. I took the ...
2
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1answer
144 views

How do I find raw files corresponding to selected JPEGS

I shoot RAW + JPEG on fujifilm cameras and 90% of the time I'm fully content with my jpeg images but a few could use some editing. To save time I would like to cull my photos into three categories: ...
4
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2answers
2k views

Why are JPEG images from camera huge and the same images exported from Vistaprint software 10 times smaller?

JPEG images from my Nikon D3300 are roughly 12-15MB big at 6000 x 4000resolution. RAW images converted to JPEG through LightRoom are also 12-16 MB. I recently created an album through VistaPrint ...
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2answers
154 views

Trying to understand losses in jpg compression

I have a bunch of jpegs taken with a Nikon D3200 at 6016 x 4000. They weigh between 9M and 12M each. To try and reduce space a bit, I compressed copies with the default Windows utility, and the new ...
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3answers
3k views

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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3answers
300 views

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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1answer
310 views

Darktable Switch between RAW and JPEG

I always shoot RAW + JPEG so i see both in darktable conected witch a yellow frame. Is there a shortcut to easy switch between both while editing or even compare them side by side? best regards ...
4
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1answer
110 views

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,...
3
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3answers
126 views

How can I losslessly extract 2D image from a stereoscopic JPEG?

I have some JPEGs captured from a Nintendo 3DS via Miiverse and would like to optimise them for the web. The images are 2D but stored as a stereoscopic JPEG, so each file ends up containing the same ...
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2answers
4k views

How can I convert an Apple iOS HEIF image into JPEG?

How can I convert an HEIF/HEIC image into a JPEG? Maybe using ImageMagick?
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1answer
201 views

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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5answers
479 views

How can I physically rotate a digital photo under Linux?

I was using gThumb version 3.2.7 for some time and I was particularly happy with option "Rotate Image Physically". Because I don't want to rely on EXIF photo rotation data. Recently I bought better ...
1
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1answer
104 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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4answers
2k views

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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2answers
500 views

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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1answer
2k 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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1answer
128 views

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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2answers
112 views

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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4answers
13k views

Can I get original JPEG image from CR2 file format? [duplicate]

I am not professional photographer , but i have a professional camera (Canon). I had shoot my pre wedding photos with this camera. So when i was open , it will be converted into black and white after ...
1
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1answer
770 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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1answer
138 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 ...
3
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1answer
146 views

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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1answer
96 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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2answers
147 views

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 ...
37
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8answers
12k views

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×...
7
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7answers
528 views

Is a JPG guaranteed to produce the same pixels?

I know there are plenty of benefits to shooting in RAW, but at the moment it seems that JPG works just fine for me. The file sizes are way smaller, and darktable seems to work just fine with them (...
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2answers
66 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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3answers
1k views

Does converting image file formats affect quality?

Does converting image formats, such as from JPG to PNG, have any effect on image quality? I know converting from RAW to JPG has disadvantages, but what about other format conversions?
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1answer
278 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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1answer
96 views

What is a corrupt picture [closed]

I use sandisk cards, USB drives and card readers. My pictures open perfectly on my MAC. When I send them to someone else via a USB drive, they cannot open the photos up on a Windows computer. Are my ...
2
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1answer
141 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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2answers
131 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 ...