Questions tagged [image-processing]

programs that manipulate, enhance, or convert images

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1answer
132 views

Is there a C++ library I can use to stitch together 16-bit images?

I am working on a C++ project where I need to stitch together multiple 16-bit images which overlap horizontally and vertically, and then save the stitched image. Is there a library which I can use to ...
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1answer
21 views

Mac-compatible software to automatically rotate, de-skew, and crop images

I'm looking for a simple and free application which can automatically scan a document (in the form of a JPG or PNG), change the perspective to remove skew, and then crop it. It would be nice if the ...
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1answer
93 views

Mobile Zonal OCR document scanner in offline

I am looking for a mobile sdk which can be capture and process a document using zonal OCR, would return a value which is part of a predefined area in an document in offline. I have gone through some ...
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1answer
26 views

Position of points where color changes in image transect

Let's imagine I have an image of a simple object with 2 or 3 (or more) different areas of different color. Now imagine I "draw" a line (transect) or use a tool producing a "virtual"...
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1answer
16 views

Client-Side Object Recognition

I am tasked with object recognition for images offline (for contractual reasons). This means that I cannot use services like Microsoft Cognition or Google Cloud Vision. I do not know if there are ...
9
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1answer
649 views

An open source alternative to Wolfram Alpha

I want an open source alternative to Wolfram Alpha that is like a QA system that: can take in natural language and process it have image processing functions has scientific functionality and ...
5
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1answer
90 views

PDF document signing

I am working on a project where the user will input data (like name, address and such) in a HTML form. With the help of PHP, and other tools, I'll use that data to populate a PDF form and database (...
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15 views

Is there a software that stitch 4 images together to form 1 big image?

Suppose I have a phone with bad camera, I want a good quality image. I take a photo at each corner of a document. So I will have 4 photos. I want to concatenate these photos together to get one big ...
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2answers
60 views

Software for automatically aligning and combining adjacent pixel-art images

I would like to know about (zero cost) software for automatically combining a series of pixel-art images of adjacent, overlapping scenes into a single composite image. OS isn't important. I'll be ...
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2answers
115 views

Java Library to convert pptx to image

Use Case: I want to convert PPTX file slides into images and post it into my website I am searching for a library to convert PPTX slides into Images(jpg, png). Suggest me a good java library. I have ...
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1answer
28 views

low level embedded drawing library

for visualisation purpose I need low level embedded drawing library (preferably written in C) for real time working , I would be calculating some data and than makeing histograms , for this I need an ...
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2answers
81 views

Program that can resize images to fit a defined maximum size

I'm looking for a program on Windows that can resize images, preferably in bulk, to fit a certain maximum size. The images are in PNG format and are usually of a larger size than the limit of 3MB, so ...
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1answer
112 views

Which C++ library to use for color quantizing images with user-defined palette and dithering?

I'm making a C++ application, and I want to quantize the colors in a imported image, using a fixed palette with optional dithering. Ideally, with many dithering algorithms for a user to choose from. ...
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0answers
5 views

Program to convert bar-graph visual data to numerical data

Does a program exist to convert already-made bar graphs (in an image file format) to numerical values, where each numerical value corresponds to the height of each bar?
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3answers
646 views

Fix up scanned text documents as images

I often scan text documents - text and possibly some logo/letterhead on a page, either entirely or mostly black-and-white. After scanning, I: Rotate the image to make sure the text is straight (this ...
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1answer
16 views

Mobile app to measure rooms and generate floor plans

Is there a mobile application than can measure a room and generate a floor plan? I'm imaging a workflow like taking a series of photographs, and have the app do clever image processing to determine ...
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1answer
76 views

Android image editor which visually and functionally integrates with Google Camera app

I'm looking for a free, preferably open source Android image editor which supports basic functions such as cropping, resizing and rotating. I use an AOSP device with a Google Camera app so I would ...
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0answers
14 views

Fast Static Site Generator for sites with lots of large images

I wrote a photography website using GatsbyJS, gatsby-transformer-sharp, the Directus CMS, and gatsby-source-directus7. It was super easy in development and created a blazing fast static website. The ...
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1answer
30 views

What software to use in creating Android apps that have the ability to do image processing?

I am now trying to create an Android app where the app can detect a specific image or object using image processing. Is there any specific software or tools that I can use in order to develop my ...
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1answer
20 views

Image editing software for fast touch up of marketplace product pictures

I'm looking for an offline image processing software that let me edit pictures in a semi-industrial way. Each picture need to be processed individually (not batch), but the current process is very ...
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0answers
13 views

A mobile app that listens for new files/photos in a folder, then sends to a server

For context, I am using a FLIR One thermal scanner. It's a thermal camera that attaches to my Android phone and has an associated App that functions just like most camera Apps, except in Predator ...
1
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1answer
45 views

PDF Compression: Lossless or near-lossless compression options?

I'm looking for a tool for macOS (Windows and Linux would also be nice) that will compress PDFs with a lossless or near-lossless methodology. There is an interesting discussion for ImageOptim PDF ...
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0answers
12 views

What Python library / API would you recommend for basic on-screen image and text processing?

I am building an application that interacts with my business's websites, as well as will hopefully manage some of the internal emailing as well. The emailing part is the tricky one; for the rest, I ...
1
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1answer
140 views

Free motion blur removal from video?

I need to be able to remove the motion blur from the individual frames of a video, so that each frame is sharp. Currently, some of the frames are sharp, and some are blurry, but I need them all to be ...
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0answers
9 views

Windows software to decrease the brightness (intensity) of desktop background images (wallpapers)

I am seeking recommendations for Windows software that will automatically decrease the brightness of the desktop background image (wallpaper). The backgrounds images are set to be shown as a ...
2
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0answers
14 views

GIMP plugin for rectifying scanned documents on Linux

I use (Devuan) GNU/Linux. I often scan official documents I receive, and want to store them. But the process of scanning (and sometime the original printing) distort the image relative to the original....
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1answer
18 views

3d Modelling: Creating driver license theory book images

I'd like to create images suitable for a (European) driver license theory book (see below). My criteria are all "nice to haves", I'd be interested to hear software recommendations that do not meet all ...
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0answers
6 views

Media uploder and CDN as a service for microservices

I'm working on a web api back-end which was build around microservice architecture. I need to put up a service for media upload handling, media optimizing, making collections and content delivery for ...
2
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0answers
20 views

Image viewer that randomly displays images from sub-folders using tag filters

I have a parent folder named "Pictures" containing tens of thousands of pictures that are organized in sub-folders that are named by date such as "2020-04-07". Some of these pictures have been taken ...
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0answers
17 views

Stitch together images that com from same source file

Here's my situation: I have grabbed some PNG images from a website that allows browsing a newspaper article at various zoom levels. I imagine that each page has its own full-resolution image file on ...
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0answers
22 views

Open source server application that can stylize photos like Google Photos does

Before I get a "lmgtfy" response, I've been searching... lots, but it's tough to find results for a term/classification you're not quite sure of... I'm wondering if there are any open source server ...
2
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1answer
102 views

API to identify people from photos

I am looking for an API that can help me identify a person from a photo and then compare if it's the same or different person in any other photo. It's kind of like how Google Photos or Facebook ...
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2answers
45 views

increasing the resolution of a pdf image

I have a pdf with an image in it, that pdf was given to me by a coworker and they asked me if I could extract that image, because we need it for a project and we can't find the freelancer that created ...
6
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1answer
67 views

Fixing corrupted jpgs that still looks ok visually

So like many people lots of my jpg photos had not been properly backed up with parity bits and all my backup copies had become corrupted due to "silent data corruption". I scanned my drive using the ...
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2answers
1k views

Aztec Android reader library

I'm searching for library (paid or free) that allows scanning and decoding Aztec codes on Android devices. I already checked ZXing (Zebra Crossing) but this library doesn't support Aztec codes very ...
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0answers
18 views

Photo-splitting software

I have many photo scans which consist of multiple images scanned on a single sheet alike this one Is there any tool which allows splitting them into separate files in an automatic way without quality-...
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0answers
13 views

Convert diagrams to graph data

There are some publicly available PDFs and image files of diagrams showing UK rail track layout (basically flow charts), which I want to parse to something more computer-friendly (a database perhaps, ...
2
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1answer
54 views

Is there an automated way to split a comic book into its panels (frames)?

I am looking for such a piece of software running under Linux or Windows. The input format of the files do not really matter (I'll convert my files accordingly): pdf, cbr, cbz, images, epub, ... But ...
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2answers
25 views

Generate image preview of 3d mesh using command line

Is there any tool to generate image previews of a 3d model? Currently using OBJ format. The goal is to do a bulk generation to quickly detect which are the characteristics of each OBJ. So far I've ...
1
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1answer
26 views

Beginner-friendly Rendering of 2D images from 3D models

I have a 3d model with opaque and transparent parts that has a light bulb in it. (A lamp) I would like to be able to see what shadows are cast onto the planes below and above it(floor and ceiling) AND ...
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0answers
21 views

Image Deduplication

I'm looking for a program that will help me remove duplicate imagess from a bunch of folders. Preferably free. It has to be able to do: Similarity matching (e.g. find images that look alike) Tell me ...
2
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2answers
70 views

What is the software to enlarge the display of an image file?

I received an image from a person, and the lettering in the image is small although these letterings are really important for me. So I want to know if software exists to enlarge the display of the ...
2
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0answers
147 views

Applications/utilities for handling JB2E files in Linux

JB2E is a file format for 1-bit (bi-level) images compressed in the JBIG2 compression standard. Unfortunately, it seems to have extremely poor support, even though it's been an ISO standard for ...
1
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1answer
38 views

Clean up greyscale images

I scanned a few comics, and have images like this I would like to have the background white ... in fact, I would like to have the white transparent, but that's just "nice to have", not "must have". ...
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0answers
10 views

Imageproxy that generates thumbnails in advance

I am searching for an image proxy (like Imagekit.io, Imgix or Thumbor) that does NOT process images on the fly (for example to generate thumbnails), but preprocesses them in advance so that they can ...
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0answers
9 views

Ready-made Python library for edge detection + warp transform for OCR purpose?

I'm looking to do something like this, basically from an image, find edge of the paper, and transform it so that it becomes rectangle and more readable... similar to phone scanner apps. I intend to ...
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0answers
34 views

How to access DC/AC DCT coefficients for JPEG images in python

I am working on steganography tools and need access to these coefficients. The best I am able to find is libjpeg but that is in C and I would strongly prefer using python code as part of my package. ...
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5 views

Recommendation for an open source Progressive JPEG Library/Tool

I am currently working on an application where I need to approximately store an Image. Since this is a new memory paradigm, it is prone to errors. I am looking for a progressive encoder which would ...
1
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1answer
15 views

Software where I can upload a bunch of images and it will randomly select a handful of them?

Something that works in Windows 10 and is free. Preferably shows them all in a row or in 2 even rows (one on top of the other). Willing to use a website too. Thanks in advance! This is for study and ...
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0answers
17 views

Generate depth map from one/two images?

I want to generate a depth map from one image, as Google's AI. Or this super unpractical blog program does from at least two. I know that exist some algorithms that do this from multiple images, but ...

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