Questions tagged [image-processing]

programs that manipulate, enhance, or convert images

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4 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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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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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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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 ...
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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 ...
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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 ...
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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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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 ...
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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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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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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 ...
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1answer
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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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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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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, ...
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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 ...
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1answer
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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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1answer
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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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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 ...
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2answers
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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 ...
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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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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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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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29 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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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 ...
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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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19 views

Calculating screen coverage

Here's my issue: I'm writing a web-design related dissertation, and I'm looking to calculate the percentage of an image taken up by certain web elements. I have a collection of 500 screenshots of ...
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1answer
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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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Need Help in identifying software for conversion of swf images to png

Need to convert swf images to png by using freeware online/software/Java program. Would like to know which is the best option apart from Adobe PS
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Searching for an image viewer for MacOS like a slideshow with auto fullscreen zoom without deforming the images

I am searching for an image viewer (also called image browser) for MacOS. I want to have folders of prearranged images (the order of the images in the folder is important). I want to be able to look ...
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51 views

Snipping/cropping tool for Windows that lets you use a square/custom aspect ratio?

I need to crop hundreds of images and make them all squares. So sizes like 600x600, 650x650, 747x747, whatever. Currently I'm going into MS Paint for each of them, manually cropping and resizing, and ...
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Most Suitable Technique To Compare Human Skin

I'm working on a project that involves analysing an image of a 3D avatar face and determining how realistic it looks. One of the metrics for this realism is based on the skin, more specifically its ...
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2answers
23 views

Image Resize + Compression + Progressive JPEG Conversion (+ Cropping optional) All-in-One?

I need to recommend software that will make it easy for a user to take an existing image and resize it (reduce dimensions), compress it, convert it to a progressive JPEG for perceived faster loading, ...
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which tool would help me to differentiate the laptops based on the make with their images?

if I upload images of laptops , can image processing tools determine if the laptops are same or different based on their make and number ? How can I achieve this using any of the tools?
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OCR reader for batch of images

I have a batch of screenshots from my favourite radio station, Primoridal Radio on my android phone. These images are saved in google photos. These contain the name of the song and artist. note: ...
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1answer
120 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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Is there a python library for classifying whether an image contains handwritten text?

I don't require what is written inside that image, i just want to know whether an image has any handwritten text.
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Multiple images to 3d print file

I'm trying to create a figurine of a friend. I'm looking for a software that will take multiple images or a video or whatever and give me an output that I eventually can turn into an STL to print. ...
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Extracting digits from an image and processing them

I work in a biology lab. Whenever we go out on the field, we start collecting data on notepads using some form of writing utensil. It's usually a large matrix I fill up with numbers. Probably the most ...
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1answer
15 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 ...
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Software for combining non-rectangular images on a large sheet

I would like to automate process of creating batch sheets for printing filled with a lot of non-rectangular images. These images (stickers) have various shapes and different sizes. Source images are ...
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2answers
92 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
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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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1answer
14 views

Smoothly enlarge a small image

I am looking for a gratis Widows app, which can take a small, blocky, image - like this: and enlarge it, smoothing it out, so that it it is not blocky & pixelated, making it at least presentable ...
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Which mesh processing library for python to chose

for a project I'm writing I need a library for python to process ".off" files (3d models mesh files), so I would be able to visualize them and save an image of several views of the model . (the ...
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1answer
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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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Object Detection Libraries

I need a Python or c++ library to detect cubic objects online in an environment with these data: [x, y, z] of the object w.r.t. camera [length, width, height] of the object Does anyone have any ...
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4answers
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Are there any good image scaling tools that are free?

I am looking for a program that can Scale images by a factor of around a 1.5 -2x scale factor. I haven't seen any programs that aren't behind a paywall. Any help would be appreciated, thank you.
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Tabbed Image Browser for Windows

I'm looking for image browsers/photo managers in the same vein as: Picasa XnView MP Faststone Image Viewer but with support for multiple browser tabs (not just individual image viewer tabs) Note: ...
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Alternatives for pHash (media fingerprinting)

I have been using pHash (phash.org) for many years to detect copyright infringements on images and videos. pHash creates fingerprints of media files that can be saved and compared afterwards. ...
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FreeBSD command-line tool to convert text file to image

Example text file: $ cat test.txt _ _ _ _ | | | | ___| | | ___ | |_| |/ _ \ | |/ _ \ | _ | __/ | | (_) | |_| |_|\___|_|_|\___/ Example output (generated with convert from ImageMagick): ...

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