Questions tagged [jpeg]

JPEG or jpg is a popular image file format.

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19 views

How to repair Corrupted jpeg file that still get their thumbail done correctly?

I've got a bunch of photos that were on an SD card. Most of them are corrupted now, I cannot open them in any program (Gwenview, Gimp, on windows too...) But every file browser still can correctly ...
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1answer
211 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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55 views

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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0answers
77 views

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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119 views

View PDFs with jp2/jpeg200 images in Ubuntu 18.04

After exporting PDFs from Goodnotes 5 on iOS, I realized that it exports the embedded images in jpeg2000/jp2 format within the PDF file. Is there any PDF viewer which can be used to view such PDFs ...
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79 views

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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25 views

Desk top jpeg too large [duplicate]

I somehow enlarged jpeg wallpaper. I cannot figure out how to return to original size. Any downloaded jpeg as wallpaper does the same thing. I am new to Ubuntu and can only use it. I have no tech ...
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1answer
1k views

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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2answers
8k 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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1answer
246 views

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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1answer
202 views

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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1answer
107 views

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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3answers
728 views

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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41 views

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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1answer
3k views

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 ...
5
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1answer
5k 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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1answer
2k 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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1answer
32 views

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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1answer
170 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 ...
5
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2answers
5k 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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0answers
65 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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1answer
420 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 ...
3
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1answer
223 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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1answer
201 views

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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0answers
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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1answer
66 views

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. ...
2
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1answer
1k views

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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4answers
381 views

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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1answer
114 views

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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1answer
758 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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2answers
261 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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1answer
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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119 views

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 ...
2
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1answer
3k 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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0answers
136 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 ...
2
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1answer
430 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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2answers
2k 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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0answers
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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2answers
177 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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1answer
772 views

Nautilus crashes when viewing directory with .jp2

Nautilus crashes whenever one tries viewing a directory containing jpeg 2000 files, I suspect because it tries to create a thumbnail and fails (I'm using 13.10, and you can probably reproduce this ...
25
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4answers
119k views

GIMP 2.8 doesn't allow to save usual image file formats (jpg, png) via Save dialog

I used to save images as usual image file formats (jpg, png) by pressing Ctrl+S or Ctrl+Shift+S (Save or Save As dialog). Now in version 2.8 GIMP doesn't allow it anymore: you can Save only as .xcf ...
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1answer
469 views

Converting PDF doc to image as preserving the PDF quality at image?

I have looked to the site and find convert like programs and used them however I cannot preserve the quality of the PDF file. I have changes the options for better resolutions but this time the size ...
8
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2answers
5k views

Avoid “save for web” in Gimp

Previously Gimp could directly open and save JPEG and PNG-images. Since Ubuntu 12.10 Gimp is upgraded and requires me to save via a "save for web"-dialog. I have several issues with this dialog and ...
68
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3answers
43k views

How can I read and remove meta (exif) data from my photos using the command line?

Just looked this up. Figure I'd share it here for future reference.
2
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6answers
186k views

how to reduce size of an image from 31.1 kb to between 15kb - 20 kb

As per a requirement mentioned here the size of photos submitted should be between 20kb-50kb. I have my scanned photos which have been cropped but the sizes are still ~139 kb. If I reduce the pixels ...
268
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8answers
293k views

Convert a directory of JPEG files to a single PDF document

I have many JPEG files in a directory, and I want to convert them to PDF and concatenate them together to make a single document. How can this be done? I would prefer using the command line, as ...
12
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6answers
69k views

How to add support for the JPEG image format

After installing Imagemagick, I've tested it with jpg image, like this: identify 1.jpg But, I got this result: identify: no decode delegate for this image format `1.jpg' @ error/constitute.c/...
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2answers
2k views

How to save .jpg NOT .JPG [closed]

When uploading photos from my iPhone to use for eBay they are automatically saved as .JPG (all caps). However eBay only recognizes .jpg. So I have to manually go back in and rename all the files with ...
3
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2answers
828 views

Too many images in one directory

I have a directory with half a million JPEG files and it can't be opened in Nautilus. What is the simplest way to see the previews of these images?
2
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1answer
2k views

Epson scanner requires libjpeg version 6 -where & how can I find this?

Using Ubuntu 12.04 LTS Release. I installed Epson Image Scan! and apparently there's a known problem that doesn't allow saving scans as jpeg unless a lib is installed. I quote the FAQ: ----- quote ---...