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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1answer
231 views

How to save my album as JPEG on Kodak Digi Album Pro?

Objective: Save my album as JPEG on Kodak Digi Album Pro. I am using Kodak Digi Album pro and I'm new to this tool. This program generates a .PAB and .KPL file format, but I want my images to be ...
16
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6answers
6k 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 ...
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2answers
175 views

Why does the imported JPEG from my Canon Powershot G9X Mark II on PC screen differ quite significantly from the camera display? [duplicate]

Consider the attached sample images. I took them circa 4:50 AM and 3:50 AM, respectively. On the Live View display of the Powershot G9X Mark II, they were full of light. The pictures were taken as ...
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4answers
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How do you identify file type/compression in a TIFF file?

From what I understand TIFF is like the .mkv container for photography - it supports a variety of compressed and uncompressed formats. But how would you go about checking if the data within the TIFF ...
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4answers
16k 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, ...
17
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11answers
3k 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 ...
2
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1answer
120 views

Why does this ugly line pattern appear when I upload my full-sized image to a website or view on mobile?

I have 5760×3840 size JPEG image and when I upload it to a website or try to view on mobile, some kind of line things seem to be going on it. It looks ugly. I tried to resize the image to 1200X800 and ...
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1answer
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How can I view .ctg files taken from my Canon camera?

How can I see the images taken from my Canon camera. All files are converted into CTG, and I could not open either in the camera nor on the PC.
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2answers
552 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 ...
6
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3answers
2k views

Which has a faster write time: RAW or JPEG?

My question is about the write times of the RAW and JPEG file formats. A RAW file is larger than a JPEG and needs more time to write to the memory but it does not need to spend time on data ...
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4answers
30k 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 ...
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3answers
312 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, ...
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2answers
219 views

Can I not use NEF on my Nikon D3100?

When I load my pictures to my computer two show up one says NEF and the other is jpeg. I accidentally deleted the jpeg and when I loaded them on my phone the NEF pictures were really bad. They where ...
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1answer
631 views

Do Nikon sensor jpegs have a very slight yellow cast to them in the image compared to Canon?

I shoot with a Nikon D3400 and I am a beginner casual photographer. I shoot in maximum quality jpeg(NOT RAW) on auto white balance. Recently my friend and I were shooting some same subjects(my friend ...
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14answers
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What are the pros and cons when shooting in RAW vs JPEG?

In general shooting in RAW format uses a lot more file storage than JPEG. What am I gaining when shooting RAW? Besides file size are there any downsides to shooting RAW?
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2answers
588 views

Why does the chart for my Canon 77D show more photos saved with RAW + JPEG than it does for RAW alone?

so since my camera saves my photos automatically in JPEG and since I wanted to have a RAW version of them I looked for some info about this topic and how it works on my DSLR, Canon 77D. I stumbled ...
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1answer
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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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7answers
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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 (...
6
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2answers
4k 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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2answers
106 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
160 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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11answers
23k views

How to delete JPG files, but only if the matching RAW file exists?

My early (Canon G2) photos are all JPG, but when I got my Nikon D90 I initially shot in JPG, then switched to RAW+JPG, and now I would like to switch to RAW only. I have literally thousands of photos ...
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2answers
412 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
4k 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
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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 ...
3
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3answers
287 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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3answers
511 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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2answers
353 views

Is there an easy way to export photos from Lightroom in original format if they're unedited?

When I export a folder or collection from Lightroom, I want unedited photos exported in their original format (like DNG, ARW, PNG) and edited photos exported in a chosen format, like JPEG. Is there ...
2
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1answer
209 views

Why do some pictures rotated with exiftran have a vertical line on the right?

I use the following command in a script: exiftran -a -i mypic.jpg For some pictures, I get a wrong vertical offset, which is seen as a vertical line along the right border of rotated pictures. This ...
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3answers
613 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 ...
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1answer
1k views

Is exiftran still needed today for resetting the orientation of JPEG images?

Since more then ten years I use exiftran to rotate images after getting them from the camera. Is this step still needed today? Don't browsers and other image apps rotate the image correctly without ...
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2answers
2k 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, ...
3
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2answers
1k views

Batch change CMYK JPG into YCbCr JPG?

I recently got a bunch of JPG photos but all are looking very strange colour wise – almost like colour negatives! My photo viewing program is saying they are all CMYK format but other ones ...
31
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4answers
6k 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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3answers
4k 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 ...
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1answer
473 views

Does Lightroom 5 do any lossless operations on JPEGs?

There are many lossless transformations that can be done on JPEGs: Crop Rotate by 90 or 180 degrees in either direction Flip horizontally or vertically Transpose along either diagonal axis Modify ...
13
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4answers
8k 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!) and ...
22
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6answers
5k 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 dpi=...
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5answers
2k 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 ...
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2answers
3k views

How can I strip tags from a JPEG without removing the color profile?

For a while now I have used exiftool to strip away unnecessary metadata from jpg files (and to add copyright information) before uploading them: exiftool -all= image.jpg However, today I noticed ...
2
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1answer
101 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 ...
3
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4answers
795 views

What is the best practice for batch compressing jpeg files?

This is fairly theoretical, as it is definitely in the realm of "pixel peeping" and is more or less irrelevant for practical use, but with the increasing popularity of full-width images on websites, I'...
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2answers
1k 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 ...
3
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1answer
448 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 ...
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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 ...
3
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1answer
186 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
206 views

Why is my Sony A57 creating low res JPGs?

I have used a Sony A57 since they became available. I always have the resolution set for 16M and FINE for JPEGs. I just took an important set of photos that were intended for large blow-ups. But ...
2
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1answer
545 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 ...
2
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2answers
794 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
2k 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 ...