Questions tagged [jpeg]

JPEG or jpg is a popular image file format.

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How to print an image to PDF from the graphical interface?

Right now I'm using GThumb to print images to PDF but am looking for a short-cut. Certainly there are console based utilities to convert files to PDF but I'm looking to do that from the graphical ...
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Shotwell, eog, and the Desktop background can't handle some JPGs everybody else can

Take a look at this picture. (In order to reproduce the problem, open this page and click "Download.") It appears OK in the browser. I can open it with GIMP. But if I open the directory ...
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Keep picture rotated

I downloaded a picture that was taken horizontally and then i opened it using Ristretto image viewer on Ubuntu 20.04.4 LTS. Problem is that when i open it, i have to rotate the picture either right or ...
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JPG files from Leica Q2M cannot be opened, Ubuntu 21.10

I've tried geeqie, ristretto, gimp, and the browsers, and nothing seems to be able to open the JPG files produced by a Leica Q2 Monochrom. They all get various errors about the file format. The file ...
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What is "Software" field in image file properties?

When we right click on a jpg, a modal "Properties" form pops up. One of the tabs is named "Image". On this tab, for most of my jpgs I see the following property names: Image Type, ...
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How can I start image viewer feh to start in fullscreen, zoom pictures to 100%, and always show them from the top left corner, not vertical centered?

I would like to watch images, which are quite tall, image height are much larger, then screen height. I can easily scroll down the image in feh by Alt+Down_arrow. To achieve this I start feh with ...
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1 vote
1 answer
368 views

How to preview JP2 and J2K images on Nautilus and Nemo?

I have a number of JPEG-2000 .jp2 and .j2k images that I want to preview on Nautilus or Nemo. How can I tell the file managers to create thumbnails for those files?
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1 vote
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Combine a .jpg and .txt in one PDF file (A4 format)

I'm trying to combine two separate files into one PDF file (A4 format). The left side should be filled with a jpeg image (for example: 0050.jpg) and the right side should be filled with text (or an ...
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Which apps support to open and convert JPEG XL (.jxl) pictures?

JPEG XL (.jxl) is the next-generation, general-purpose image compression codec by the JPEG committee (more info you can find on jpegxl.info). Which apps/programs can open and convert it?
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How can I make files show thumbnails?

Ubuntu 20.04.1 Files shows file names for .png files and possibly others, e.g. .jpg I want it to show thumbnails. I've looked at files > preferences which is set to All Files less than 10Mb, but I'...
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-1 votes
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Apache2 web server does not load most images: Internal server error

I have reinstalled a school website previously on Ubuntu 14, now on Ubuntu 18 with LAMP software; now Apache2 web-server works fine except for images; it does load only a few images, and refuse all ...
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Bulk Quality Conversion of Images (ie Compression)

├── ~/ │ ├── content/ │ │ ├── image01.jpg │ │ ├── image02.png │ │ ├── image03.bmp │ │ ├── text-file.txt │ │ ├── video.mp4 │ └── ... └── ... Let's say I want to compress all ...
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Ubuntu 20.04 Desktop Not Treating .JPG Extension As An Image; Doesn't Create Thumbnail

My Ubuntu 20.04 desktop isn't treating .JPG as an image. It doesn't create a thumbnail. When I use video editing software Kdenlive only .jpg show. But when I double click on a .JPG it does load as an ...
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3 votes
1 answer
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How to repair corrupted JPEG files that still have their thumbnails?

I've got a bunch of photos that were on an SD card. Most of them are corrupted now and I cannot open them in any program (Gwenview, GIMP, same on Windows...). But every file browser can still ...
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1k views

View images over active Linux SSH session

How would you view a JPG over SSH? I have tried ForwardX11, but I get an error saying 'X11 forwarding request failed on channel 0'. I can use vim, but display, eog, ty-and-imgcat have all failed ...
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Ubuntu 18.04 LTS Desktop Background Compression

I hope some of you can help. I recently took a nice photo and decided I would like it as my desktop background. The image is around 4000x2200 pixels and is in ratio with my monitor. When I view the ...
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18.04 LTS Nautilus jpeg thumbnails not displaying

I recently did a clean install of 18.04 LTS on a Lenovo Laptop. The thumbnail previews do not display for common files like JPEGs and mp4 files. I have tried changing the settings in Preferences to ...
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Image size mysteriously becomes 0 bytes after renaming

I renamed some jpeg image files through command line and all went perfect except one thing that some images do not have thumb nail and shows 0 bytes on checking their properties but are still getting ...
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finding a serial number of a jpg file in linux terminal

I have issues decoding my jpg file to find it'sserial number from my linux terminal thought ssh . my file and detail of command I did M5KDAN44 grep "serial number" M5KDAN44 my error serialnumber is ...
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41 votes
2 answers
43k views

imagemagick - convert not allowed [duplicate]

I have multiple *.jpeg pictures I like to merge into a single *.pdf file like so: convert Blatt1.jpg Blatt2.jpg Blatt3.jpg Blatt4.jpg out.pdf I am prompted with the following exception: convert: ...
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Colibri opens instead of PDF and image files

I recently upgraded to Ubuntu 18.04.1 LTS, and some files no longer open correctly in their default applications (e.g. PDF and JPG files). Instead, Colibri opens with no content. I've confirmed their ...
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convert with -resample changes background to black

When I create a pdf and use convert to increase the image resolution, for some reason the background is changed to black. Here's an example \documentclass{amsart} \begin{document} \begin{center} {\...
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Is there any drawback to using jpg instead of png for screenshots?

OS: Kubuntu 18.04 with gnome-screenshot installed. I ran these commands consecutively on the same desktop screen: gnome-screenshot -p -d 10 -f /home/dkb/"GS$(date +%Y%m%d%H%M%S)".png and gnome-...
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3 votes
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Saving JPEG from GIMP - JPEG not recognized by other programs

I am using GIMP v.2.8.16 to combine several figures from different file formats into a single JPEG image. I'm able to accomplish this and save as JPEG, and open it on my computer perfectly fine, but ...
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mp4 videos has somehow changed to jpg format

I was thinking that I have lost some of my mp4 videos. Now I have found them as a large size jpg files. I don't know how that happened bud would like to be able to play them again. Just renaming them ...
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PDF to Single, Continuous JPG [duplicate]

I'm looking for a way to convert a PDF to a single, continuous JPG. I've tried: convert source.pdf output.jpg But I get all separate pages, eg: output-1.jpg output-2.jpg output-3.jpg ... Is there ...
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5 votes
1 answer
8k views

Ubuntu 16.04 LTS does not display .jpg files

I have a series of .jpg files that do not show on Ubuntu Image Viewer or as thumbnails. These are perfectly ok on Windows 32 and 64 and on Mac OS. Strangely one very old .jpg file does display ...
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1 vote
1 answer
3k views

How to extract a JPEG from a PDF [duplicate]

I have a JPEG image inside a PDF file, i know that it is a JPEG, because when i open the file with a hex editor i can see JFIF string present in it. How do i extract it into a separate file. The ...
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Jpg with # in name not found

I have an image on my web server called image#01.jpg. If I go to http://www.myserver.com/image#01.jpg I receive a 404 error. How I can solve?
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2 votes
1 answer
273 views

Can I automatically remove transparency from layers from jpegs without losing quality?

As well as being a developer, I am an artist. I make most of my artwork with GIMP and I save my artwork into a folder in jpg format. I now make sure that a transparent layer was not accidentally added ...
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8 votes
3 answers
8k views

Converting image to Jpeg2000 does not work

I try to convert an image to Jpeg2000: convert example2.png -quality 95 example.jp2 But the output is still png: file example.jp2 example.jp2: PNG image data, 2549 x 3507, 8-bit/color RGB, non-...
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2 votes
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71 views

Program to generate batch PDFs or JPEGs?

I have a spreadsheet and I was wondering if anyone knew of a program that would batch generate simple PDFs or JPEGs from the records in it a la mail merge? That is, I have a record that contains Title,...
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0 votes
1 answer
561 views

Apply exiftran recursivly (rotate all images based on their EXIF info)

I would like to execute exiftran on all .jpg files recursively below the current directory. exiftran -ai * does what I need (apply rotation based on EXIF info) within the current directory, but not ...
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3 votes
1 answer
700 views

Rotate all images in a directory that are of a specific geometry

I would like to rotate all images in a directory that are of a specific geometry. Can I use ImageMagick for this? If so could you help me with the code for the command prompt?
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How easy is it to get Linux.Ekoms.1?

I read about this malware, one of the biggest specimens of malware on the Linux news right now. How easy is it to get? Paranoia has gotten the better of me. According to the sites I visited, it is ...
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1 vote
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1k views

Terminator Background image shades

I use terminator and recently, I tried to add a background image to it through the option provided in preferences, and for some reason the image that it is rendering is a bit shady and the colors are ...
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0 votes
1 answer
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why are jpeg previews included with each photo in the directory?

i have uploaded a bunch of RAW photos on my ubuntu device from an SD card, and what i am finding is that in each directory where my photos are stored, there is also a jpeg preview right next to it. ...
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2 votes
1 answer
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how to use specific library when building application from source?

I am trying to compile jpegoptim from source . When I try to do ./configure I have the following error Cannot find libjpeg or you have too old version (v6 or later required). I wanted to make sure ...
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5 votes
4 answers
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How do I concatenate multiple JPEG images into a PDF?

I am trying to concatenate multiple JPEG images into a single PDF document. I used LibreOffice to make a great thumbnail collage, but it isn't acceptable to the agency to which I am trying to send it....
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1 answer
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Did a jpeg2000 file corrupt my install?

While running UBUNTU 14.04 I navigated to this web page http://www.fnordware.com/j2k/jp2samples.html and downloaded their linked example jpeg2000 format graphics file http://www.fnordware.com/j2k/...
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0 votes
1 answer
935 views

Error interpreting JPEG image

I'm trying to upload pictures from a microSD and some pictures uploaded seamlessly, while others did not. All are '.jpg' files. When trying to open it I received the error: " "Error interpreting JPEG ...
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3 votes
2 answers
382 views

Jpg images turn black on using cp command line

I have used the following command to copy folder containing JPEG and PNG images: sudo cp -r ~/Downloads/wallpap/ /usr/share/backgrounds/ However the JPEG images turn black while the PNG images are ...
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1 answer
63 views

Script to remove JPG's with particular vendor tag

Somebody put their memory card into my smartphone, and suddenly (with auto-upload enabled) I have a folder full of photo's that are not mine on my Ubuntu machine. How can I delete JPG files that have ...
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Can't browse to big files and upload in browsers (chrome, firefox and explorer under wine)

I can't upload jpegs over 3mb to photo websites (society6 and blue canvas) because they do not show in the browse files box. Smaller jpegs show up and can be uploaded (900kb or so). What could be ...
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2 votes
1 answer
4k views

cjpeg fails "unrecognized file input format --- perhaps you need -targa"

I'm using 14.04.1 LTS (server), I have installed the following: libjpeg8 libjpeg62 libjpeg-turbo8 libjpeg-progs libjpeg-turbo-progs The image file in question returns this with the file command (I ...
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1 vote
0 answers
149 views

how to add georeferencing to a jpeg file

First of all, I'm completely new to Ubuntu. My Garmin handheld GPS is recognized by Ubuntu and I am able to access the file. I wish to add a Jpeg map to the device and I'm running into problems. I ...
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2 votes
1 answer
570 views

jpegs created by Gimp unable to be read

Just upgraded Ubuntu to 14.04 and Gimp to 2.8.10. Have used Gimp for photo editing for some years with no previous problems. Now when I edit a jpeg photo and export to jpeg or even overwrite the ...
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3 votes
2 answers
3k views

Merge multiple JPEGs into one Video

I am capturing images from a web came in 1 second intervals. I would like to find a way to create a video of these images. Since the camera is still and there can be long periods of time when the ...
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1 vote
0 answers
1k views

How to take screenshot in jpeg format using ubuntu tools only

i need to develope a cpp software to capture screenshot ( in jpeg format ) and send images's bytes through a socket. I created correctly the server socket but i don't know how to take a screenshot ...
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2 votes
2 answers
305 views

How to create a HDR file from set of image files?

I have many JPEG image files for the same scene with different exposure setting. How to create HDR file using them in Ubuntu 12.04amd64.
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