Questions tagged [jpeg]
JPEG is a lossy-compression method for a digital image. The images can end up in many JPEG image containers (JPEG, JPG, JIF, JPE, JFI, JFIF) depending on the parameters surrounding the compression of the image data. JPEG is actually an acronym for Joint Photographic Experts Group, the group that created the compression standard for JPEG.
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Screenshots are in RAM (Not on Disk!) as BMP, which slows down things when pasting screenshots in chats. How can I change default format?
For my job as a student supervisor, during 90% of the time I spend on Teams with students I share screenshots of plots or anything I have on my screen, and they do the same to me. We do Win-Shift-S ...
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Could not complete your request because a SOFn, DQT, or DHT JPEG marker is missing before a JPEG SOS marker
I am trying to understand the old Whatsapp downloaded jpeg not opening in Photoshop message, "Could not complete your request because a SOFn, DQT, or DHT JPEG marker is missing before a JPEG SOS ...
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Revisiting how to repair broken JPEG images?
This has come up a number of times. This post here shows a way to extract the thumbnails:
How to repair corrupted JPEG files that still have their thumbnails (AskUbuntu)
That's a low-res solution, ...
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Is a JPEG file that is missing “ff da” on its header recoverable?
Is a JPEG file that is missing ff da on its header recoverable?
I have a JPEG file that will not display, I've tried putting the file on a hex editor and searching for ff da in attempt to fix the ...
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Specific Video Making
I know this may be oddly specific, but answer me these:
How do I make a video out of images where each image lasts for 5 seconds?
I am looping a video where the characters can only say "1! 2!&...
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How to convert heic format to jpeg format
The ffmpeg master branch already supports the heic format. How do I pass parameters using the ffmpeg command to convert heic images to jpeg images of other resolutions?
ffmpeg -i test.heic output.jpg, ...
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How does FLIR embed multiple images into their thermal image results?
FLIR thermal cameras store results in .jpg files as read by the system and any viewer as a single layer image with all data visible.
The layers are principly: the thermal image in its resolution, a ...
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How to prevent large file size in JPEG-PDF roundtrip conversion?
TL;DR: File size doubled in roundtrip conversion between JPEG and PDF. Tools used : poppler and imagemagick
I am doing this
Extract images from a pdf containing only images (scanned document), via ...
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JPEG Corrupted file fixing
I had an old, broken hard disk containing a lot of JPEG files.
I took that hard to an information recovery company.
The company was able to extract part of the files well, But there are many others ...
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Is it possible to determine which Windows program last modified a jpeg?
I keep finding jpeg images on my computers, which are corrupt. Some have a gray band at the bottom, some are reported bad by Bad Peggy (but look normal when viewed in e.g. XNView) and some are just ...
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Why this photo cannot opened on anywhere except google browser?
https://wxiang.oss-cn-beijing.aliyuncs.com/new/web/20230804/1691128104810-91071.jpg
Above is the address of the photo , you can download it and try to open it in any image software and google browser. ...
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Is there a program that can select the smallest files by size during a file conflict in windows 10
So I'm resizing some VTFs by converting them back into PNGs then sizing them down to 512x512 as maximum anything smaller stays what it is. that said I have 2 folders 1.oldmats 2.newmats. now while ...
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How can I automatically copy screenshots to .jpg instead of .png on Windows?
I have tried various tools such as Greenshot, Ksnip, and ShareX as well as Windows clipping tool, etc., but I can only get it to save as .jpg, not copy to clipboard.
I want this because for web use I ...
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GIMP advice on JPG to PDF conversion
When I convert JPG files to PDF using GIMP the result is usually a much bigger file.
The first step upon importing is the dialog for a conversion that is titled "convert to RGB working space"...
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Is converting images to pdf lossy?
Converting an image to pdf then back to image format:
$ convert in.jpeg out.pdf
$ convert out.pdf out.jpg
$ diff in.jpeg out.jpg
> Binary files in.jpeg and out.jpg differ
Trying different ...
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gimp exports are about 50% bigger, how should I economize on space?
Suppose I'm satisfied with the quality of a JPEG photo but I just want to crop the edges without ending up with a bigger file. I use gimp to do the cropping. The JPEG photos are always photos of text ...
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Preserve quality parameters when saving jpgs in photoshop
I have a bunch images, all saved using JPEG, quality: 90, subsampling ON (2x2).
When saving as .jpg in photoshop Save As dialog offers no 0-100 quality option, nor a subsampling checkbox/setting.
Is ...
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How to print as a bitmap?
When using programs that allow printing, in the Print dialog I can choose to print the output to a PDF instead of sending to a physical printer (for example, selecting the "Microsoft Print to PDF&...
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I don't know how to play this videos
This videos are from an IP camera but I don't know how or where I can play it. I tried with VLC using a demuxer for h.264 but it doesn't work.
I tried converting the videos to mp4 but it looks like ...
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compressing media files while preserving metadata
I have tons of phone media backup, and I want to reduce their size by compressing them.
For example compressing video files by encoding them to x265 codec, and for the photo files to lossless JPEG, ...
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How to save PowerPoint 365 slide as image at Clipboard quality of JPG or PNG format ? Tech Support typically only supports JPG or PNG for upload
How to save slide as image at Clipboard quality?
1. Screen Capture quality visually identical to Monitor view
1. sample of Screen Capture directly pasted
2. file direct save nor export result in ...
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Can apng or any other image filetype be animated over many years?
I am wondering if there is a suitable image type that can be animated or a layer can be animated to vanish over a long period of time... like years?
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In Windows 10, what is changing the filename extension of JPG files to JFIF?
In Windows 10, the value of Computer\HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/jpeg/Extension is changing from JPG to JFIF at frequent intervals
This value is changed roughly every 2 to 3 ...
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Opening JPG/TIFF in Preview, Can't Save from Preview
User is trying to open any image file- tiff, jpg etc in the default macOS Preview app and then save/export it to a jpg- usually to the desktop or documents and cannot. See below.
System 1 Specs:
macOS ...
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Can I change the compression ratio of a JPEG image on travel.state.gov (passport photo tool)?
When on travel.state.gov's photo editor, I get
Image is overly compressed. Please use a compression ratio that is less than 20:1
Is there anyway to get past this screen in the application given a ...
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Create a New Image File Extension in Windows 10 that operates like an image file
I would like to add some new file extensions to my system.
Short Version - I would like to add PNG2, PNG3, PNG4, PNG5 exact copies of PNG and JPG2, JPG3, JPG4, JPG5 again, exact copies of JPG. I want ...
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How to sort thumbnails from a collection other low size photos?
I have a collection of low sized photos (low file size, say around 50KB), consisting of thumbnail images of my camera photos, whatsapp forwarded images and other images downloaded from internet. The ...
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How to convert old PEF pentax raw format to jpg or mp4?
I have some old pentax .PEF files and I want to convert it updated jpg or mp4 formats. How do I go about this?
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Pattern_Type Glob or other *.JPG wildcard input file support for Windows 10?
I am using Windows 10 with "ffmpeg version 4.4-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10.2.0 (Rev6, Built by MSYS2 project)".
I am writing a ...
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FFMpeg - JPG/PNG images render in incorrect orientation in MP4 output file and can't be combined in same MP4 video
I am a new user to FFMpeg.
I want a command-line that will create a basic slideshow MP4 video from a folder of JPG and/or PNG images. The images are sourced from either digital cameras/smartphones or ...
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Context menu entry for .jpg files not showing anymore
My custom made context menu entry for .jpg files does not show up anymore in Windows 10.
I did the steps correctly by going into the HKEY_CLASSES_ROOT\jpegfile\shell key, adding a new key there, give ...
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What makes two main JPEG file formats, JFIF and Exif, incompatible?
JPEG is not a file format. The two major formats are JFIF and Exif. Wikipedia page on JFIF says that:
JFIF is mutually incompatible with the newer Exchangeable image file format (Exif).
The two ...
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Is it safe to simply rename a .jfif file to .jpg?
I downloaded several images that are are .jfif files. I have various enhancements (e.g. context menus) and processing scripts that are keyed to *.jpg files and would like to use these with the new ...
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ffmpeg split JPEG-encoded MOV video into frames without reencoding
I have a MOV video file from an old digital camera where the video stream is just a series of JPEGs. I'm trying to extract those JPEGs without reencoding them (or at least come as close to the ...
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Convert all Images of a Type to Another Throughout the Computer Simultanously
I just realized my computer has been saving jpeg files as jfif for some weird reason and I have no idea since when. Is it possible to change the extension of all jfif files to jpg again throughout the ...
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Is it possible to quickly export a .jpg and .png simultaneously in Photoshop?
I work with product images for an online retail site. Each product image needs to have a .jpg copy and .png copy. Currently, I just export once as .jpg and then export again as .png. This is both time-...
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Can I convert my octet-stream / text file to a jpeg?
I got a file with MIME type application/octet-stream, off the browser cache. I have a strong feeling it's a jpeg file that I want to open.
First few files of the file:
ÿØÿà �JFIF������ÿÛ�„�
&...
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How to configure Firefox to open JPG files in an external application
I often need to open JPG files from a website that are not rotated properly. I am using Firefox on Windows 10.
When I click on their link in Firefox, they open in a new tab and I have to rotate my ...
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.jif images do not show thumbnail on Windows
Any JPG, GIF, PNG, etc, will display a Thumbnail on Windows File Explorer.
However, JIF images don't:
If I rename ".jif" to ".jpg", it displays the thumbnail:
Is there any way to ...
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Processing large amount of WhatsApp jpeg files in Adobe Photoshop
When I tried to open a jpeg file, downloaded from WhatsApp in Adobe Photoshop I've got the following Photoshop error:
Could not complete your request because a SOFn, DQT, or DHT JPEG marker is ...
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How to make video from high resolution jpg?
I try to make video from 2 jpeg (6912x3456 px, files is large it is 360 panoramas) with ffmpeg by
ffmpeg -r 1/4 -pattern_type glob -i "my_dir/*.jpg" -c:v libx264 -profile:v high -crf 18 -vf &...
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Windows 10 search within images
Just like Windows 10 will search file content like pdfs etc. is there a way to get it to OCR and search within images?
Especially I have a lot of screenshots etc in a folder of websites or other text ...
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Is it possible to change orientation of JPG image without rotating it (and thus losing information)?
As JPG is a lossy compression, every re-encoding losses quality. Thus, 90/180/270 degree rotation is a lossy operation as well. Is it possible to change orientation of JPG photo by changing some of ...
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Trying to convert jpgs to video but getting only the first frame
Update:
Thanks to everyone who weighed in with help, I did finally get it to work. My best understanding is that it was an issue with threading from the original script and the video creation command ...
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On Widows, how can I screen capture, then paste as JPG (not PNG) into gmail?
How can I capture part of a screen on Windows 10, then paste as a JPG?
Using the inbuilt snipping tool and third party tools, the resulting pasted image ends up as a PNG in Gmail.
PNG files are ...
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Why do edited jpgs get larger
OS: W10
Tool: Photos application
I normally scan in pictures away from the top right side of my scanner because of a scanner fault - it produces a lighter coloured line down the picture. Anyway, ...
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Export Powerpoint to a single PDF, each page as an image
I have a Powerpoint presentation. I want to turn it into a PDF.
If I Save a Copy and use PDF, there are least two issues that I want to avoid:
Text is selectable.
This could be perhaps avoided via ...
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Retain quality while mirroring jpg FFmpeg
I can't seem to retain the color of a jpg file when I mirror via FFmpeg:
ffmpeg -i "G:\My Drive\Adobe\Photoshop\Discord Emoji\yousellfish\Exports\yousellfish_2x.jpg" `
-vf hflip `
"G:\...
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Remove jpeg artifacts for scanned texts
I have a scanned PDF of a textbook, but the PDF is aggressively compressed so lots of JPEG artifacts are present and affects its readability. Example:
I tried a variety of method to fix it but the ...
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Lossless or near lossless compression options for PDFs containing grayscale with JPEG2000?
I have some older books (pre 1900) that I'm working on archiving to a digital format. Most of the time using greyscale is satisfactory in terms of color preservation, however I'm having trouble with ...
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