Questions tagged [image-processing]

Manipulating and processing static images, techniques and software for such tasks.

Filter by
Sorted by
Tagged with
1
vote
2answers
32 views

How to bulk convert NEF/RAW images to JPG and remove original images?

I want to convert all NEF/RAW image files to an image format that could be easily opened without additional tools. I thought about using ImageMagick's convert tool as mentioned in How can I convert a ....
0
votes
0answers
16 views

How to implement on the UI image cropping feature

I recently came across one use case to crop the images through imagemagick library. I am using a hacky way to crop the image using the convert command like this: #left,top ...
1
vote
1answer
32 views

Windows style snipping tool on linux [closed]

Is there any snipping tool available on linux that's similar, or works similarly to win10's? I mean, using a button combination to bring up the snipping tool box (like win10's win + shift + s) and ...
0
votes
0answers
19 views

How to add new metadata (title+content) to images & videos?

example: i want to add 3 unique ids to each image(in a set of 100) through a python script so that the whole process of reading and writing new metadata can be automated. How can it be done? I ve ...
2
votes
0answers
24 views

Converting JFIF standard jpg files to EXIF standard jpg files in Ubuntu

How can I convert JFIF standard jpg images to EXIF standard jpg images in Ubuntu 20.04 preferably via command line if possible?
1
vote
1answer
35 views

How to resize images to either 900-pixels-height for vertical ones or 900-pixels-width for horizontal ones?

I have vertical (i.e. height > width) and horizontal (i.e. width > height) images. I want to resize them to either 900-pixels-height vertical ones or 900-pixels-width ones based on their ...
0
votes
0answers
56 views

How do I batch convert images from sRGB to CMYK with a specific ICC profile?

I have a few hundred sRGB .tif files that require conversion to the CMYK FORGRA52 ICC profile. I tried using the software XnConvert, but this doesn't work (I don't think it supports conversion from ...
0
votes
0answers
15 views

Is there a way to regroup DICOM images from different sessions?

People have asked about opening DICOM files here in askUbuntu. But I don't think anyone has asked specifically how to extract images from different series and combine them into a new series. I have a ...
1
vote
2answers
44 views

How to automatically print multiple images per page?

Using an Ubuntu linux, what is the best/easiest way to print multiple images per page? The global number of images and pages and the requested number of images per page should be dynamically chosen.
0
votes
2answers
170 views

Image viewer that can display all ICO sizes in a file

What are the image viewers available in Kubuntu that are able to display all ICO sizes in a file? In Windows 7 Picture Viewer, I can use PAGE UP / PAGE DOWN to navigate on the "mipmaps" (or ...
0
votes
0answers
88 views

Imagify Error “Our server returned an error (0 - getaddrinfo() thread failed to start). I attached screenshot”

I installed plugins WordPress imagify and when I would like to compress image. I got 170 errors with Our server returned an error 0 - getaddrinfo() thread failed to start I attached a screenshot. ...
4
votes
3answers
472 views

Application for simple and quick drawings

I am using Ubuntu 20.04 and I need you to suggest me an application to make simple and quick drawings. I need the application to support common image formats and allow me to quickly add text, crop, ...
1
vote
1answer
1k views

How to view .HEIC photos from iPhone IOS 11+ on Ubuntu?

Friends send me email with attachments containing .HEIC pictures from their iPhone. How can I easily view these pictures on Ubuntu?
1
vote
1answer
210 views

how to convert 1280x720 jpg files to 640x240 ppm files using ImageMagick convert command?

I'm kind of in a hurry so I ask it here (I'll read the documentation later). I have image files (width 1280, height 720, colored, jpg) and I want to first reduce the files to half both vertically and ...
1
vote
1answer
155 views

AVIF editor recommendation

Any recommendations for an image editor that can save in avif format? I am interested in outputting avif format files directly, without having to go through a secondary conversion process.
0
votes
1answer
43 views

Different amount of loss after same processing on any image in Ubuntu 18.04 vs Ubuntu 20.04

When I load an image via PIL in Python3, save it and then load it again, I get different values in Ubuntu 18.04.5 vs Ubuntu 20.04.1. I understand that re-saving an image will alter the values due to ...
0
votes
0answers
90 views

How to create a composite from multiple images and highlight the differences?

What I am looking for: a way to create a composite from multiple images and highlight the differences while blending the rest of the image. What I have: several hundred frames extracted from a video ...
0
votes
0answers
21 views

Resize a set of images with varying sizes to follow the 16:9 aspect ratio

I am editing a video with a 16:9 aspect ratio. However, I have a set of images of varying sizes and I am looking for a script that helps me to reshape them to follow the 16:9 aspect ratio (I don't ...
0
votes
0answers
13 views

Software That Quickly Joins Images?

I often find that I have to join images together in a certain order, with a given number of rows and columns, so I am often finding myself using this website. I was wondering if there is some software ...
1
vote
1answer
179 views

Use `ffplay` to play images in a folder by file orders

ffplay is a tool to play images inside a folder without saving a video. See command options here But the problem is the filenames in my folder do not have a pattern, as they are sampled unevenly. Let'...
0
votes
1answer
113 views

How to find image on screen

How to find coordinates of image file on screen, if it present on screen, from command line? Its needed for bot what clicking button in firefox-flash, button have different coordinates from time to ...
0
votes
0answers
111 views

Zero-padding of output file names in gif->png conversion from ImageMagick

I have used this great answer to convert a .gif to its constituent frames: convert foo.gif foo.png My intention was to do some edits to the frames on the command line before combining them back as an ...
0
votes
1answer
149 views

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 ...
2
votes
1answer
74 views

How to check if an image has 2 bytes per pixel and how to convert it to an image with 1 byte per pixel?

I have thermal images from FLIR camera that has 2 bytes per pixel. I am not sure how I could check in Ubuntu if these images have 2 bytes per pixel or not. Also, how can I convert a 2 byte per pixel ...
0
votes
2answers
71 views

How can automatically print a page bigger than an A4 on multiple A4 pages?

I have an image bigger than A4 (210x297 mm), let's say 400x400 mm. Is there a way to automaically print it on multiple pages keeping the original size, so that I can just put them side by side to get ...
0
votes
1answer
44 views

image version broken ubuntu 18.04LTS

I reinstall Ubuntu 18.04LTS and I have 2 image version: 5.3.0.28 generic (original installation) and 5.3.0.59 Uupdate version). This last version do not work. How can eliminate that version from boot ...
0
votes
3answers
75 views

Good program to cut out image regions manually

I have to process several hundred images manually. The work consists of cutting out square regions from the pictures. I want to save these regions. When saving, there should not be any loss of quality....
2
votes
1answer
1k views

How to batch / multi process cropping images in the terminal?

I tried to crop several images of the same size, but when I crop 5 images and the process is complete, only 4 images are cropped, 1 image is not cropped, if I crop 1 image an error will appear... I'm ...
0
votes
1answer
33 views

Is there a solution for scanning several photos in one go and save them in several files?

I use xsane for scanning. Is there any solution for putting several photographs on the scanner and they are split up automatically into several files after the scan? Or loading the resulting file ...
0
votes
0answers
158 views

How to speed up my new 'supposedly' high powered computer

Does anyone have some tips for ways I can optimize/improve the speed of my computer? Just bought a new one, intended for neuroimaging analysis, and i installed ubuntu. I know there's some features of ...
0
votes
1answer
43 views

Any script that can automatically crop really large image by checkered?

I have a really large map image (11010*17518 pixels) and I want to print it in average size pieces. Is there any automatic script that can crop a image by checkered (e.g. into 4*4 and get 16 smaller ...
1
vote
1answer
418 views

How to change image PPI in batch mode?

Is it possible to change an image resolution expressed in pixels per inch (PPI) in batch mode, using command line? My images resolution is currently below 100 PPI. I would like to enhance it to ...
1
vote
0answers
86 views

Error occurred when I used tensor flow lite custom model

I faced an issue while running an object detection program using tensor flow lite costum model.I am attaching the error code bellow. classes = interpreter.get_tensor(output_details[1]['index'])[0] # ...
2
votes
2answers
74 views

Software to seamlessly edit multiple images

Format of my mom's old PC is overdue, W7 is slow and choppy and I'd love to show her how fast her laptop can be with a lightweight Ubuntu distro. But my mom is really used to Microsoft Office Picture ...
10
votes
1answer
4k views

How to convert graphical images to ASCII art?

I want a custom image in my terminal made of characters, is there a program I can use? Specifically, the gear within my school's robotics logo.
5
votes
1answer
854 views

Convert images into PDF without ImageMagick hacks

Since ImageMagick's PDF abilities are broken ("not authorized" error) for some time with no solution in sight, what are the alternatives for converting images into PDF format right now? I'm not ...
1
vote
0answers
34 views

Put signature onto pdf file [duplicate]

I have two files: A pdf file and a png file with my signature. Now I want to put the png image file onto the pdf on a particular place. Which GUI tool could help me here?
2
votes
1answer
684 views

Join images with padding and alignment

I have two images of different height which I want to join horizontally (i.e. side-by-side). I want the images to be bottom-aligned as well as to be separated by a 25 pixel wide white area. With ...
0
votes
2answers
141 views

How do I just get the image, and get rid of the black columns on right and left in Shotwell?

Is there a way of cropping the image in the center and getting rid of the black columns that shotwell shows on the screen?
9
votes
10answers
2k views

Alternative to IrfanView

On Windows, I've been using IrfanView as my image viewer of choice for about 15 years. I use it for things like resizing, cropping, flipping and rotating images; converting between different formats; ...
1
vote
0answers
216 views

GIF maker for 18.04 without losing quality

I am looking for a GUI tool like GIMP to create animated GIFs from PNGs. I tried GIMP 2.10. The quality of GIF is low in it. Perhaps to reduce the size of GIF, but there are burrs on the side of the ...
1
vote
0answers
57 views

Looking for a way to automatically resize and skew (perspective) images

Today I'm tasked with doing a piece alignment system for a customer. He needs to align cut pieces (roughly about 50 cm) in a table, so they're processed (table moves after the operator has aligned ...
4
votes
1answer
218 views

How do I dewarp fisheye (Samsung Gear 360) photos?

Samsung Gear 360 is a dual-spherical 180+180 fishey lens setup for full vertical+horizontal 360* panarama or virtual reality photography. On windows, one can use Cyberlink power director to import &...
1
vote
1answer
874 views

How to print multiple copies of an image on a single page - gui

I am looking for a GUI way to select one image file and print it multiple times on a single sheet of paper. This is basic functionality in other OS's, but my best shot for doing this in Ubuntu so far ...
2
votes
1answer
382 views

How do I change the text color in Pinta?

I'm using Pinta in Ubuntu and have added a text box to my image. I then added text, which doesn't show because, I assume, it's white colored. I can highlight the text and see the length is correct, ...
1
vote
1answer
166 views

Command to convert many images to one square image (not becoming a column or a row)

Is this really duplicate? I have not yet found it anywhere. For example: I have 4 PNG images: image1.png, image2.png, image3.png, image4.png. Every one of them is 200x200 pixels. I want to convert ...
1
vote
1answer
658 views

How do I cut out an object with Inkscape?

How do I cut out a object with Inkscape? I have a photo of flip flops but I need to only have the flip flops cut out.
4
votes
1answer
766 views

CSV table creation from image

What are the Ubuntu options to create CSV tables from an image: Ideally, options would be simple and quick. Image is from Yield Curve article
0
votes
0answers
375 views

How to fix undefined reference to TIFFOpen-TIFFClose-TIFFGetFiled on Ubuntu-19.04

I have recently installed Ubuntu-19.04. I saved the the most important data from Ubuntu-18.04 as an enormous .tar file as I had some broken files on my 18.04 and transferred everything to the new 19....
1
vote
1answer
85 views

How can I rename image file based on colors in the image?

For example: If I have a 2x2-pixel image. In the image: 3 pixels are red. 1 pixel is green. 0 pixels are blue. I want to rename the image to 3_1_0.

1
2 3 4 5
8