Questions tagged [image-processing]

programs that manipulate, enhance, or convert images

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33 views

Software to print image from procedural script?

It is surprisingly hard to search for and find a piece of software that handles a very specific need... I am making a sort of slide rule that fits in a watch face, and I need a program where I could ...
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1answer
20 views

iOS image annotation tool, to make highlight mask

Help, looking for an iOS way to do this: (highlight by using translucent mask). I know how on a desktop... looking for mobile method. Thought maybe the "mask image" workflow in Shortcuts would do it,...
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66 views

Which software to light pen text on an image ?

Which software (Windows&Linux) can I use to (yellow) "light pen" text in an image? Like below:
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97 views

Software or method to batch invert b/w images

I have directories of 100-500 small black & white image files (jpg) that I need to batch invert, from white text on black to black text on white. They will then be input to tesseract-ocr. I am ...
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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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34 views

Free online photo editor to resize photos and export to web format?

I am traveling and don't have access to Photoshop because I am on a business laptop. I need to resize about 12 large photos and wondering if there is a free online photo editor where I can easily ...
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1answer
108 views

Python library for creating movies from frames

Wanted: A Python library (supporting at least Python 3.5+) that can take a sequence of (non-animated) raster images (in some format that Pillow can generate) plus timing information and create a movie ...
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1answer
734 views

Batch-add text on images

After a full day of searching, I can't seem to find a software that can do this for me: I have this slightly transparent png image: And I want to be able to take a list of all (1000) of my articles ...
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24 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 ...
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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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1answer
56 views

Extract Sound Wave

I am looking for a Software from which I can Extract the Sound Waves to be used in a Graphic Software. It is basically for gifting to someone. Can someone guide me in right direction? A command line ...
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1answer
14 views

Free tool that fills transparent areas in a picture in a content aware way

Photoshop seems to have a feature to automatically fill transparent areas in a photo in a content-aware way with machine learning where the machine learning guesses the best way to replace the ...
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21 views

Image processing software for extracting fields from a form

I am looking for recommendations for a somewhat intelligent image processing library. My use case: I will scan multiple physical paper forms. I want to intelligently identify the edges of the form (...
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34 views

Split pdf table columns into separate pages

I have an OCRed PDF table. I want to split it into pages, one page per column. Tabula is not working on this particular document due to a known issue.
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146 views

is there command line software for convert jpg to png In addition to imagemagick in linux?

I have issues with imagemagick on my machine, and hence am looking for an alternative that can be used to convert images from JPEG to PNG on the command line. The tool must run on Linux, and ...
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1answer
110 views

Algorithmic Image Processing+Editing - Matlab vs Gimp

I have some image processing and editing tasks like resizing images based on various algorithmic outputs such as largest cyclic edges/contour in the image, filtering out certain colors, as well as ...
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1answer
31 views

Graphics tool for extracting snapshots from a video for Linux

I am looking for a graphics tool that can extract snapshots from a video, and one that I have come across is VirtualDub, described in a response to What free tool can step through and extract ...
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1answer
223 views

Easy to use particle tracking software

I'm a physics student and we have to do an experiment. We follow a microscopic sphere of diameter about 40um for 20 sec, in water. The sphere will travel a distance wich we have to measure in ...
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7 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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11 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 ...
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6 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 ...
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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 ...
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16 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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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 ...
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17 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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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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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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27 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 ...
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15 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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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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4 views

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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31 views

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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39 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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5 views

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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8 views

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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10 views

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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11 views

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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5 views

Softwear to detect vertex of cells on grid table for java

I wonder which library or softwear is proper to detecting vertex of cells on grid table image. Please refer to the picture below. I want to know each position (x,y or value for distinguish each cells)....
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12 views

What library/technology to be used to apply .dng file(presets) on an image in android application

I am about to start developing an image processing/editing application in react native. I have some presets exported from adobe lightroom as .dng file format. I need to apply these filters/pixels on ...
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8 views

App for saving graphics for the web using efficient web-friendly formats

For webpages to load faster, provide better user experience, reduce bounce rate, save bandwidth, etc. (and and so possibly even rank batter), optimized images are needed. By 'optimized' I mean having ...
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23 views

Train mask RCNN model with RGB-D data?

I'd like to train a mask rcnn model using not just rgb data, but also include depth images. Is this possible and how would I go about doing it?
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4 views

Which algorithm can be used to compress image files ? Suggest any Python based algorithm

Currently I am working on a monitoring project.It captures the activity of user by taking screenshots and saving it in a folder. Later on I am applying image processing to identify the activity of ...
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75 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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83 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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20 views

SDK or SaaS to crop and deskew photographed documents

I'm looking for recommendations for a SaaS or a software library/SDK to deskew and crop photographed documents on a server. Users take photographs of paper documents with a smartphone, possibly with ...
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9 views

Open source Android app to make cloudy beach pictures look sunny

Central Japan has many beaches, but: There are always clouds, due to high humidity The sea always looks dark, probably due to the sky The sea is almost always opaque, due to particles The sand is ...
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1answer
29 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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33 views

Reverse image search (of the type Google's “Search by image” can *not* do)

I would have thought Google Images' algorithms are by now sophisticated enough that their "Search by image" feature does a pretty good job idenityfing web pages where the same or a similar image can ...
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1answer
86 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 ...