Questions tagged [image-processing]

programs that manipulate, enhance, or convert images

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2
votes
1answer
94 views

Know if an image is similar

I'm developing a mobile app and I want to know if you know any JavaScript library or similar to compare two images. I need to apply a search for similar images after the user takes an image with the ...
3
votes
1answer
38 views

Drag & Drop canvas trimmer for transparent PNGs?

I need to take images that are exported and quickly trim off the transparent cruft around the images that are exported. The part to be removed will always be 100% transparent. Traditionally I use ...
2
votes
2answers
67 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
votes
3answers
137 views

Batch-combining large images

I have a bunch of equal-height images in PNG format that I want to arrange horizontally into a single image, without any overlapping. I need a software that can do this either automatically (e.g. with ...
8
votes
1answer
138 views

Lossless Screenshot Resizer - automatically detect “empty” regions

I asked a similar question on Programming Puzzles & Code Golf, but I'd require a version with a bit usability. Here's what the software shall do: get screenshots from clipboard open screenshots ...
1
vote
2answers
228 views

Easy adjustment/alignment of scanned / photographed pages on Linux

Sometimes I need to process scanned images or photographed book covers, where I usually only have the resulting image (JPG/PNG) but not the original (to recreate a clean variant myself). Pages/covers ...
0
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0answers
20 views

Affordable real-time stereo reconstruction software?

Here's more information: I’m interested in capturing the real-time deformation of a small object on the centimeter scale. My price limit is $USD 500.00 The OS I'm using is OS X El Capitan. ideally ...
8
votes
3answers
10k views

Program to generate a CSV file from an image containing a table

I'm looking for a program that can generate a CSV file from a scanned image or PDF containing a table E.g. if the input is the ouput would be the corresponding CSV file: AIDS Behav, 9712133, ...
3
votes
1answer
35 views

Program to quicly remove specks from images

I need a program to quicly remove speckes (dust) from images (manually). At the moment I use XnView: I open an image (standard ones: jpg,tiff, and png), select a speck and press the delete button. To ...
1
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0answers
16 views

Parallel version of SIFT?

I know that SIFT is considered (according to many paper) the most accurate detector & descriptor available. Btw, it's one the slowest solutions also. So, there is any parallel implementation (...
4
votes
1answer
55 views

Motion detection in a large number of photos from a webcam

I have a webcam taking a photo every minute. Most of the time, there is nothing happening, so I end up with thousands of thousands of near identical photos. How can I find the photos where something ...
0
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0answers
22 views

Tool for advanced lossy JPEG optimization

Short question I need to optimize my JPEG pictures targeted for the web. So I'm looking for a tool that achieves maximum compression while retaining an optimum of the quality. Choosing a default ...
2
votes
2answers
3k views

Automatically remove white borders from pdfs, no OCR, command line

(similar question exists, is explicitly for another platform and doesn't mention that no OCR is needed) I need a command line tool (or a PDF viewer which supports this as a display option) which can ...
0
votes
1answer
73 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 ...
0
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0answers
21 views

Overlaying plots

I am looking for a program that can overlay plots. Example: Given the two following plots, it should produce a single plot containing both curves, using the same x-axis and y-axis. Assume one doesn'...
3
votes
0answers
58 views

Quickly straighten and crop a large number of photos

I have taken several hundred photographs at an event. I would like to do some simple, quick editing of these, before sharing them. Specifically, rotating the photo to straighten it, and cropping it as ...
2
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0answers
13 views

Insert folder hierarchy as IPTC tags

I have a lot of pics sorted and organized in folders as ~2009/Gotham Trip/Selena's cam/ ~2009/Gotham Trip/Jason's phone/ ~2011/Work/Bludhaven Visit/Barbara's cam/ ~2011/Work/Blüdhaven Visit/Tim's ...
2
votes
1answer
184 views

Android app to anonymize a JPG picture but leave latitude/longitude and time

Before uploading a JPG picture to a public website, I want to remove any metadata that could help identify me. The only things I want left are: Latitude/Longitude where the picture was taken Date/...
1
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0answers
46 views

Android image processing app to batch correct photos for scanner

I want to scan an A4 paper, but I don't have a scanner. My Android device has a good camera though, so I take a picture of it and I end up with a JPG file that is pretty sharp but has the following ...
2
votes
0answers
98 views

Linux image processing program to batch-correct photos for scanning

I want to scan hundreds of A4 papers, but I don't have a scanner. I have a good camera though, so I: Put the paper on the floor Focus powerful lights on it (including sunlight) With the camera, zoom ...
3
votes
1answer
55 views

Tool to turn video into long PNG

I have some small video files that are a few seconds long, and I would like to turn them into long PNG files. I'm not sure if there is a better way to say this. For example, if one of the videos is ...
1
vote
2answers
138 views

C++ library for simple image manipulations

I'm currently using openCV for some image reading, filtering and resizing. However, openCV support a whole other bunch of functionality and is much too big for my taste. I'm looking for something ...
1
vote
1answer
32 views

Testing if a SVG file contains raster graphics

I am looking for a program that can test if a SVG file contains some raster graphics elements. Linux or Windows, CLI or GUI, and gratis if possible.
2
votes
1answer
45 views

Add alpha channel and remove background for more than 2 images at once in Windows

I look for a tool, most desirably open source or Free software, that can run on Windows 10 and has a GUI, that can take X number of images (definitely more than 5) and just add Alpha channel to all ...
2
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0answers
196 views

Math / Image processing library for JS

First question here, feel free to edit / close / suggest. I need to do some simple computations on images in JS. The results are not to be displayed in a browser, so I don't need canvas utilities or ...
4
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0answers
50 views

Better picture->ASCII art converter, that takes character shapes into account

Typical picture to AA converter just treats all output characters as pixels, considering only it's overall boldness. I want Image -> Ascii Art converter that uses OCR technologies and choses ...
4
votes
1answer
108 views

Free app to generate random picture collages

I am looking for an app to create a pictures collage. It should be generated automatically with settings like final image size distance between pictures number of pictures directory to take the ...
2
votes
3answers
382 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 ...
2
votes
2answers
48 views

Software to display change of positions for transition of image

User Story: I wish to help a teacher friend, who is co-ordinating children formations in the playground for a sports function at a free small-town school. Such as, forming the letter, K, forming a ...
0
votes
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 ...
6
votes
1answer
138 views

Library to overlay text on top of data URI images

In HTML, I can use a data URI to display image to avoid requiring an HTTP request to fetch image resources. This can be useful for displaying icons. For example: <img width="128" height="128" ...
1
vote
1answer
130 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 ...
1
vote
2answers
1k views

Possible code or library for 2D convolution in C++?

I need to do 2D convolution using C++. I am looking for a function like MATLAB's conv2 function, but for C++. I am not looking for any general tips, such as: Why don't you use fftw for ...
1
vote
1answer
405 views

Crop and de-skew scans automatically - scriptable, high-volume

I'm looking for a scriptable program (or .NET library) that I can point at a directory and say, "crop and deskew all the scans this directory, in place". (Scriptable because I have to run this on tens ...
3
votes
2answers
101 views

Windows software to automatically trim edges of photographs of documents

Can anyone recommend gratis Windows software to automatically trim the edges of photographs of documents? Must have an option to adjust for perspective. The program does not need to take the actual ...
3
votes
1answer
88 views

Facial recognition for my proprietary picture tagging?

I tag (and caption) my own pictures myself, locally, on my own machine, in a system of my own design... And then use various APIs (Flickr & Facebook) to use this data to curate my photos. ...
1
vote
1answer
72 views

Command-line tool to copy image from file into clipboard along with DPI information

I need a tool launched from the command line (or API) with an argument like "D:\image1.png" which copies the image into the clipboard including its DPI resolution. Requirements: Windows up to 20€ (...
3
votes
1answer
152 views

Automatic generation of images from mockup

I'm currently making a website that's an ecommerce, and I sell T-Shirts, hundreds of them. I have some images that serves as 'mockups' for my products, that is a person wearing a flat T-Shirt. I'm ...
4
votes
2answers
2k views

Java Open Source Imaging Library as a substitute to the JAI

I am currently looking for an open source alternative to the Java Advanced Imaging API. I need a plugin for the javax.imageio package, and I need the functionalities that would other be in the JAI. At ...
2
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0answers
251 views

Explicit content image filtering/detection

I am looking for a software solution for detecting the presence of explicit content in a given image. The filter would essentially give a prediction of the likelihood of explicit content in an image, ...
3
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0answers
87 views

Bulk Sorting and Data Extraction from Scanned PDF

I work in a small company that will start dealing with some data processing, as an additional service to its core business. We need to accomplish two things for a large number of scanned PDF files (...
11
votes
1answer
147 views

“Hacker” utility: space-efficient embedding a file into JPEG file container

With the advent of social media platforms and pervasive free image hosting (for example, Amazon's recent "unlimited photo storage" for Prime members), I would like to take advantage of this to (...
3
votes
1answer
74 views

Stitching images to create a montage

Currently I'm using this application to create a photo montage for various galleries, however the app does not build correctly on OSX. I'm looking for an OSX equivalent to do the same thing. ...
2
votes
2answers
818 views

C# 64 bit WebP encoding library

All the existing (Interop) C# libraries I've found wrap a 32 bit version of libwebp.dll As a result, I (correctly) get an ImageFormatException when I try to use the wrapper from a 64 bit program... ...
1
vote
1answer
67 views

Bulk image resizer with definable sizes and methods

I'm looking for some software that will allow me to take a folder of images and resize each image to a variety of different sizes. I'd like to be able to bulk resize images define the exact sizes for ...
9
votes
1answer
565 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 ...
7
votes
3answers
125 views

Program to cut&save rectangles out of a scanned document

I often use my scanner to scan multiple small receipts. I can fit 10 small receipts on a page. I'd like to save these receipts, each to a separate file. I can do this easily with copy and paste, but ...
2
votes
0answers
21 views

Fixing drifting and warping in tissue samples

I've got a set of slides that have been imaged under a microscope. The tissue on the slide floats on a water bath prior to being picked up by the glass. For example: In this image, you can see how ...
1
vote
2answers
36 views

Face Images and Face Databases [closed]

I want to get face photos or images of a given race e.g. asians from search engines like google.com or bing.com for a photo profiling software project I am building. What would be the best search text ...
2
votes
0answers
37 views

Software to count structures in an image (rastergraphic)

I work with scanned plates from a report of an excavation. I need to count stones build in gravesites. I can do this manually, but it would be very time consuming and frustrating. I am looking for a ...