Questions tagged [image-processing]

programs that manipulate, enhance, or convert images

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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
96 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
602 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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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
54 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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1answer
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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1answer
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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134 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
30 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
214 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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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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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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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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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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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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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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13 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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16 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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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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25 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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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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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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9 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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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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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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2answers
34 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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47 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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16 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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232 views

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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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
28 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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What should I use to detect a shirt on a person?

I am trying to use some sort of CV library to detect features on a human, specifically their shoulders, hips, and waistline. Given a bitmap, I should be able to manipulate it to look something like ...
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8 views

Command line Software to compress images

I need a command line software (preferrably) which can compress photos to a given maximum size so that I can easily upload it to websites.
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5 views

Capture and upload an Image using HTML 5, which is supported on every browser and platform

So I'm looking for something in HTML 5 to capture an image, which also should be capable of these: 1. It should be working on all the browsers and platforms. 2. Has the functionality of Image ...
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19 views

A python library to adjust exposure of an image

I need a library, ideally python, which can adjust exposure of an already captured image. It could be a jpeg. It should be similar to how you can adjust exposure in apple's preview app. I searched ...
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8 views

What's the best way to apply image transformations to a live video feed on a raspberry pi?

I am trying to build a vr headset that displays a live feed from a camera, and in order to do that I need to display the video twice side by side and apply distortions for the vr lenses. I'm currently ...
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Two part question about hidden temporary urls for images and modified image copy saving

What libraries in nodejs should I use in order to be able to do the following two separate things: first: Hide the direct url to the saved image from user by utilizing a "dummy" url with a time limit ...
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Analyzing multispectral images data from a drone

We are planning to develop an application/software for monitoring of rice field. After researching, I was curious on how to analyze the data from drone camera. Reading the data and then showing the ...
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9 views

Software to raise the definition of text in a bitmap image

I have a screenshot taken from facebook and if it prints blurred because the DPI resolution of the monitor is very low compared to the printer resolution. I'm looking for a software which can upscale ...
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Need recommendations for python libraries to identify the vehicle type (car, bike, bus)

I'm trying to develop a vehicle type identification system with my Raspberry Pi (with the Camera Module). When the camera is directed to a vehicle, the system should identify the type of that vehicle (...
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What software is for generating Digital Elevation Model (DEM) (.tiff) from a satellite images pair?

I am doing a project concerning to extract DEM from high-resolution satellite images. The images were resampled with epipolar resampling. Is there software that is with a free license and easy to use ...