Image processing | Ecosyste.ms: Awesome

https://github.com/toughyear/image-annotator

Annotate any image by creating bounding boxes. Output in JSON format. Useful for path finding in 2d games.

Last synced: 30 Apr 2026

https://github.com/qbarthelemy/pygofpid

Python package for good old fashioned perimeter intrusion detection systems for video protection.

computer-vision foreground-detection i-lids image-processing intrusion-detection opencv python scientific-computing video-processing video-protection video-surveillance

Last synced: 06 Jan 2026

https://github.com/dmamakas2000/filter-ppm-cpp

An academic project featuring a PPM image editor with custom 2D data representation, file handling, and image processing filters using C++. Supports reading, writing, and parametric transformations via runtime arguments. Highlights core concepts in image manipulation and data management.

2darrays cpp filter functions image-processing inheritance mathematics ppm-image

Last synced: 28 Mar 2025

https://github.com/dharmveer97/aws-image-uploading

Code and resources for optimizing image uploading speed to AWS S3 buckets in a Next.js app directory using @apollo/server , including directory API routes for AWS S3 bucket integration. Utilizes @aws-sdk, @aws-sdk/client-s3, @as-integrations/next, dropzone, graphql, and graphql-tag.

apollo-server aws aws-s3 aws-sdk browser-image-compression buckets3 dropzone formik getsignedurl graphql image-processing imagecompression imageupload multipleimagepicker next next-js nextjs-app-router nextjs14 sdk yup

Last synced: 19 Feb 2026

https://github.com/erykkruk/flutter_fast_image_editor

Native C image editing for Flutter. Blur, sepia, saturation, brightness, contrast, sharpen, grayscale with region-based effects via FFI.

blur dart ffi filter flutter image-editor image-processing native

Last synced: 29 May 2026

https://github.com/sidharthmohannair/visionuav-navigation

A robust vision-based localization system for UAVs operating in GPS-denied environments. The system utilizes advanced computer vision techniques to achieve accurate position estimation by matching real-time drone camera feeds with satellite imagery.

adaptive-noise-scaling akaze brisk computer-vision feature-detection feature-matching geolocalization homography image-processing localization opencv orb position-estimation ransac region-of- sift uav uav-navigation

Last synced: 16 Oct 2025

https://github.com/sadhasivamx/computervision-explored

Exploring ComputerVision from scratch

cnn-model deeplearning image-processing machinelearning opencv python

Last synced: 02 Jan 2026

https://github.com/nomadsdev/pixel-matrix-converter

PixelMatrix Converter is a simple tool that converts images to matrix data and back. It’s ideal for image manipulation and analysis, allowing easy conversion between visual and data formats

data-convert file-io image image-processing image-processing-python matrix matrix-multiplication python-matrix structure

Last synced: 03 Jul 2025

https://github.com/anonfaded/image-resizer

This tool allows you to easily resize images through a graphical user interface (GUI) or a command-line interface (CLI) on Windows, Linux, and Mac.

image-processing opencv3-python

Last synced: 30 Mar 2025

https://github.com/bmtlab/binarization

Project with a demo application for image threshold

c image-processing image-segmentation

Last synced: 23 Jul 2025

https://github.com/debugger404/multi-dimensional-image-modeling

PyTorch Multi-Dimension Model Training - 🖼️ Training models on random multi-dimensional images with labels. Includes datasets of 8D images and supports image classification using pretrained models like ResNet18, VGG16, DenseNet161, and AlexNet. Adjustable for 3D image training.

image image-processing model multidimensional python pytorch traninig

Last synced: 30 Apr 2026

https://github.com/docutain/docutain-sdk-example-windows-forms-.net-framework

Sample project showing how to integrate the Docutain SDK into a Windows Forms application.

data-capture dataextraction image-filter image-processing ocr ocr-recognition pdf sdk textrecognition

Last synced: 03 Jul 2025

https://github.com/milliorn/image-resizer

Simple desktop application that allows users to resize images directly on their desktop

electron electron-app electronjs image-manipulation image-processing resize resize-images resized-images toast toast-notifications toastify

Last synced: 17 May 2026

https://github.com/alejandromllo/laguerre-gauss-preprocessing

Laguerre-Gauss Preprocessing: Line Profiles as Image Features

aerial-imagery artificial-intelligence image-classification image-processing knn-classifier machine-learning mlp-classifier preprocessing

Last synced: 14 Apr 2025

https://github.com/astrabert/breastcancer_contextml

On-spot training to enhance the performance of traditional machine learning algorithms, applied to the prediction of breast cancer malignity from ultrasound images

academic-project ai breast-cancer-prediction healthcare image-classification image-processing kaggle-competition machine-learning qdrant ultrasound

Last synced: 11 Jun 2025

https://github.com/mreliptik/imagefiltering

Few simple tools made to filter images. Built for university course "Computer Vision"

computer-vision filter image-processing python python3

Last synced: 06 Apr 2025

https://github.com/rousan/reduce-image

A helpful tool to make an image smaller in size and quality

image image-processing reduce size

Last synced: 16 Mar 2025

https://github.com/z1skgr/-image-techniques--analysis

Image processing techniques on matlab

image-processing matlab

Last synced: 16 Mar 2025

https://github.com/alpha74/gep_text_extractor

Extract and parse latitude and longitude from screenshots of Google Earth Pro, using OpenCV and Python. Used as a sub-module.

api gep-text-extractor google google-earth google-earth-engine google-maps-api image-processing image-recognition ocr opencv python tesseract-ocr text-recognition

Last synced: 29 May 2026

https://github.com/decadenza/paf-plate-and-face-recognition

A complete GUI tool to recognize and detect plates and faces in video streaming and files

face-recognition image-processing plate-recognition

Last synced: 27 Aug 2025

https://github.com/ptahmose/colortwist

an exercise in SIMD-optimization

arm avx-instructions avx2 cpp image-processing neon

Last synced: 04 Sep 2025

https://github.com/mementomori11723/gifnetor

A video to gif converter built in go and ffmpeg

conversion image-processing opencv pillow python streamlit

Last synced: 12 Apr 2026

https://github.com/scipion-em/scipion-em-modelangelo

Scipion plugin for ModelAngelo: an automatic atomic model building program for cryo-EM maps. With or without providing a sequence.

cryoem fair image-processing science scientific-computing scipion workflow

Last synced: 18 Jun 2025

https://github.com/jcaperella29/document_cleaning_cli

🧠 AI-powered pipeline for cleaning scanned documents. Removes noise, enhances text, auto-tunes model weights, and returns OCR-optimized PDFs via CLI or cloud API.

auto-tune batch-processing cli-tool cloud-run computer-vision deep-learning denoising document-ai document-processing fastapi image-enhancement image-processing ocr ocr-pipeline ocr-pipelines pytesseract python rest-api scanned-documents

Last synced: 08 Jun 2026

https://github.com/jromero132/pdf-merger

A Python utility for merging multiple PDFs and images into a single PDF file. This tool maintains aspect ratios, centers content on custom-sized pages (default A4), and supports recursive directory processing. Perfect for organizing documents and creating cohesive PDF compilations.

aspect-ratio command-line-tool content-center cross-platform custom-page directory-recursive document-management document-processing file-conversion file-organization image-processing image-to-pdf multi-format-support open-source pdf-merger pdf-tools productivity-tool python python-utility python3

Last synced: 03 Apr 2025

https://github.com/ernanej/ruby-edge-detection-threads

Edge and Relief Detection in Images with MiniMagic and Ruby Threads.

image-processing ruby threads

Last synced: 30 Mar 2025

https://github.com/recolude/imgconv

Utilities around dealing with images inside of game dev. Inspired by my hate for TGA.

game-development image-processing

Last synced: 03 Jan 2026

https://github.com/lunardiver/pimovementdetector

Raspberry Pi based movement detection system that can notify other systems over TCP.

csharp dotnet dotnet5 image-processing movement-detection raspberry-pi raspberrypi tcp unit-test unit-testing unittest vscode

Last synced: 12 Apr 2026

https://github.com/noarche/autocrop

Simple tool that batch crops 'to-fit' all transparent PNG or WEBP files. Windows Executable Available.

batch-processing crop-image image-crop image-cropping image-manipulation image-processing

Last synced: 25 Mar 2025

https://github.com/noarche/img2-svg

Simple batch convert all image files to SVG or ICO format.

ico-convert ico-converter image-converter image-manipulation image-processing image-processing-python svg-convert svg-converter

Last synced: 25 Mar 2025

https://github.com/salihmezraoui/image-quilting

A C++ project implementing the Image Quilting algorithm based on Efros and Freeman's method for seamless texture synthesis. It generates larger, continuous textures by stitching overlapping patches from a source image. Using Minimum Error Boundary Cut and MSE Patch Selection, it minimizes visible seams and achieves high-quality texture results.

clion cmake cpp image-processing image-quilting

Last synced: 24 Aug 2025

https://github.com/asmrcodez-yt/computer-vision-projects

mini projects of computer vision : python,YOLO

computer-vision data-science game- image-processing mini-project python yolov8

Last synced: 12 Jun 2025

https://github.com/fitushar/seamcarving_content-aware-image-resizing

The availability of sophisticated source attribution techniques raises new concerns about privacy and anonymity of photographers, activists, and human right defenders who need to stay anonymous while spreading their images and videos. An image can be considered to be a combination of both significant (foreground) objects and some less significant (background) objects. Content aware image resizing (CAIR) algorithm uses the different edge detection methods to segregate the useful objects from the background. When applied to an image, CAIR can resize the image to a very different aspect ratio without destroying the aspect ratio of the useful objects in the image. In this project, we simply implement a content aware image resizing (CAIR) in MATLAB environment. The main idea to implement CAIR is to remove or insert the vertical or horizontal seams (paths of pixel) having the lowest energy. After implanted the Seam Carving Algorithm for Content aware image resizing (CAIR), analysis shows that the implemented seam carving for CAIR can generate more desirable resized images than cropping, resampling, and conventional seam carving techniques.

content-aware-resize image image-processing matlab matlab-gui resizing-images seam-carving

Last synced: 24 Aug 2025

https://github.com/sudoDeVinci/SkyImager-obfuscated

Public facing version of the devinci.cloud website functionality, with appropriate obfuscation and censorship.

arduino cpp data-science esp32 esp32-arduino flask image-processing mysql object-detection ota-update

Last synced: 23 Aug 2025

https://github.com/bryanwilhite/mathematica

My Mathematica notebooks…

calculus character-recognition data-visualization image-processing mathematica mathematics sound-synthesis-processes wolframlanguage

Last synced: 04 Feb 2026

https://github.com/deep110/quilter

image-generation image-processing python

Last synced: 25 Mar 2025

https://github.com/andreihar/poisson-blending

Poisson Image Blending

image-blending image-compositing image-processing matlab poisson

Last synced: 30 Mar 2025

https://github.com/travorlzh/vision-stuff-cpp

Face recognition modules written in C++ instead of Python

cplusplus face-recognition image-processing

Last synced: 29 May 2026

https://github.com/dario-marvin/ImageProcessing-KernelConvolution

c-plus-plus convolution image-processing kernel python

Last synced: 10 Mar 2025

https://github.com/komed3/img2txt

Precise text extraction from images and PDF documents

image-processing ocr pdf-processing tesseract-ocr text-extraction

Last synced: 29 May 2026

https://github.com/codenoid/darkroom.rs

image-processing image-processing-api rust

Last synced: 08 Jul 2026

https://github.com/awrsha/traffic_sign_recognition

Final Project for Introduction to Computer Vision and Image Processing (IBM Course)

cnn computer-vision image-processing

Last synced: 12 Jun 2025

https://github.com/amari-calipso/papers-please-tasbot

A "Papers, Please" TASbot that offers a programmable interface with the game

cython game-bot games image-processing numpy papers-please papersplease python python3 tas tool-assisted-speedrun

Last synced: 13 Feb 2026

https://github.com/lmantw/canvaz

A simple, easy-to-use image processing library written entirely in Zig.

image-processing zig zig-library zig-package

Last synced: 03 Apr 2025

https://github.com/youkoulayley/worker_images

Resize and crop images in your application asynchronously with NATS.

crop crop-image image image-processing nats nats-streaming python resize resize-images worker-images

Last synced: 16 Jan 2026

https://github.com/glorkpixels/encoding-an-image-with-another-image

encoding an image with another image, and decoding it back. Paper application

decypher decyption encoding encryption encryption-decryption image image-processing

Last synced: 04 Jul 2025

https://github.com/aniketraut16/vi-sem-labs

This repository is a collection of all the codes and screenshots from my 6th-semester lab sessions. It serves as a personal archive of my work across various subjects, capturing both the learning process and the results. Dive in to explore and learn!

data-mining data-warehousing deep-learning image-processing natural-language-processing video-processing

Last synced: 02 Sep 2025

https://github.com/yas-sim/python-dpcpp-extension-sample-code

Python extension sample code using Intel oneAPI DPC++. The extension does a simple image processing using DPC++ kernel.

box-filter convolution-filter dpcpp gpu-acceleration gpu-programming heterogeneous heterogeneous-parallel-programming image-processing numpy numpy-capi oneapi opencl python python-extension sample-code sycl

Last synced: 13 Apr 2026

https://github.com/ankitkataria/image-denoising-pipeline

:camera: An experimental image denoising implementation for ECN-316

denoising image-processing

Last synced: 31 Dec 2025

https://github.com/o-l-l-i/ComfyUI-Olm-Histogram

A compact, real-time histogram analysis node for ComfyUI — with easy-to-use interactive UI, smooth rendering, and accurate pixel sampling. Built for compositing-style workflows and color diagnostics.

comfyui-custom-node image-processing javascript python

Last synced: 19 Aug 2025

https://github.com/teamdyaus-itnu/object-detection-with-aruco-marker

Object Measurement Project Using ArUco Marker and OpenCV

aruco-marker calibration computer-vision distance-measurement feature-detection image-processing marker-tracking object-measurement opencv opencv-python python robotics

Last synced: 10 Apr 2026

https://github.com/enpaul/kodak

Serve auto-generated banners, previews, thumbnails, and more from any directory. Lightweight, simple, and designed for performance

image-preview image-processing microservice thumbnails web

Last synced: 16 Mar 2025

https://github.com/harish-balaji-b/image-dehazing

The research goal is to quantitatively evaluate the performance of DCP Morphology and CAP HLP, individually and in combination with CLAHE, in improving image visibility and quality under hazy conditions. The findings aim to guide the selection and optimization of dehazing methods for enhanced computer vision in challenging environmental scenarios.

cap-hlp clahe color-attenuation-prior dark-channel-prior dcp-morphology haze-line-prior image-processing signal-and-image-processing signal-processing

Last synced: 27 Jul 2025

https://github.com/sureshbeekhani/autoencoders

This project is a practice implementation of an autoencoder, The primary use case for this autoencoder is for anomaly detection in sales data, but it can be adapted for other purposes. The autoencoder compresses the input data into a lower-dimensional representation and then reconstructs the original input from this representation.

autoencoder convolutional-autoencoder data-compression data-reconstruction deep-learning denoising-autoencoder generative-models image-processing latent-space machine-learning neural-networks vanilla-autoencoder variational-autoencode

Last synced: 04 Sep 2025

https://github.com/talkor/pgm-processor

Grayscale image processor in C

c image-processing

Last synced: 10 Nov 2025

https://github.com/eftekin/ai-engventures

🤖 A collection of projects and experiences in AI engineering, including machine learning, NLP, and computer vision.

ai computer-vision deep-learning image-processing machine-learning

Last synced: 31 Aug 2025

https://github.com/epfl-center-for-imaging/napari-floodfill

Interactive object annotation in Napari using a flood fill tool.

image-processing napari-plugin

Last synced: 09 Jan 2026

https://github.com/ricyoung/2pac

Find and eliminate corrupt image files with visual detection. In memory of Jeff Young.

corruption-detection image-processing image-validation jpeg-repair python-tools

Last synced: 26 Jan 2026

https://github.com/sssooonnnggg/alpha_bleeding

A tool used to fix white border issues by doing alpha bleeding.

alpha-bleeding image-artifacts image-dilate image-fix image-processing image-white-border image-white-edge

Last synced: 02 Apr 2025

https://github.com/dhruvsrikanth/workbalancingstealingimageeditor

An image editor implemented using the work balancing and work stealing parallelism schemes in Go.

convolution-filters go golang high-performance-computing image-editor image-processing multithreading parallel-programming parallelism work-balancing-algorithm work-stealing-algorithm

Last synced: 23 Apr 2025

https://github.com/dhruvsrikanth/pipelinebspimageeditor

An image editor implemented in Go, utilizing the pipeline and BSP parallelism schemes.

bsp bulk-synchrnous-parallel convolution-filters high-performance-computing hpc image-editor image-processing multithreading parallel-programming pipeline-algorithm

Last synced: 23 Apr 2025

https://github.com/superrmurlocc/blackjack-table-state-monitoring-system

A Blackjack Table Monitoring System using classical image processing techniques. The system detects card stacks, recognizes individual cards, calculates points, and determines game outcomes. Achieves 100% accuracy on high-quality images without using neural networks, making it efficient for devices with limited computational resources.

blackjack card-recognition computer-vision image-processing opencv segmentation template-matching

Last synced: 16 Feb 2026

https://github.com/jerboa88/gatsby-plugin-component-to-image

A Gatsby plugin to generate images and PDFs from React components

gatsby gatsby-plugin gatsbyjs image-generation image-processing open-graph open-graph-generator open-graph-protocol pdf pdf-generation react react-components reactjs seo seo-optimization twitter-image

Last synced: 04 Jul 2025

https://github.com/cloudinary-developers/sxsw-2018-hackathon-guide

SXSW-2018-Hackathon-Guide

hackathon image-processing live manipulation music sxsw-hackathon video

Last synced: 15 Jan 2026

https://github.com/meetox80/captcha-onnx-ocr

Automated captcha solving powered by ONNX

captcha captcha-solver image-processing ocr onnx

Last synced: 29 May 2026

https://github.com/oscarsun72/renameimagefilesonebyone-windowsformsapplication

圖檔重新命名

explorer explorer-filemanager image-processing images move-files picture-gallery picture-viewer pictures rename-files

Last synced: 16 Mar 2025

https://github.com/justusschock/delira_cycle_gan_pytorch

A delira-compatible cycle-GAN skeleton.

computer-vision cycle-gan cyclegan delira gan generative-adversarial-network image-processing pytorch pytorch-cnn

Last synced: 12 Apr 2026

https://github.com/gtiwari333/javacv-test-capture-webcam

https://ganeshtiwaridotcomdotnp.blogspot.com/2017/01/javacv-configuration-in-windows.htmlJavaCV-Test-Capture-WebCam

image-processing java javacv webcam

Last synced: 24 May 2026

https://github.com/aiaaee/analyse_simple_image

the extraction of meaningful information from images. mainly from digital images by means of digital image processing techniques

image image-processing image-recognition matrics matrix-computations python

Last synced: 09 Apr 2025

https://github.com/meqdaddev/pixcraft

Welcome to PixCraft... Unleash the Power of Pixels

edge-detection flask gaussian-blur image-processing matplotlib matplotlib-pyplot numpy opencv opencv-python python

Last synced: 09 Apr 2026

https://github.com/zazi2002/image-processing-dsp

Digital Signal Processing project with focus on circle detection in images using various methods such as correlation and gradient analysis.

correlation detection image-processing matlab

Last synced: 10 Nov 2025

https://github.com/mreliptik/imagestovideo

Simple images to video conversion script

image-processing opencv python3 video

Last synced: 21 Jan 2026

https://github.com/cuixing158/visual-based-odometry-estimation2

Stitching and fusion of on-board surround view BEV real world image sequences, odometer estimation and output of large pixel map

algorithms bev bof computer-vision dbow image-processing image-similarity matlab mex odometry opencv orb stiches

Last synced: 14 May 2026

https://github.com/mekhyw/boss-electronic_fursuit

A Complete wearable character suit system with many features

audio-processing cad electronics image-processing machine-learning telegram-bot wearable

Last synced: 14 Aug 2025

https://github.com/johnelliott/image-hub

👁 Rapidly share images from a digital camera

camera image-processing local nodejs photography raspberry-pi webapp

Last synced: 19 Apr 2026

https://github.com/liziwl/faas

Image processing service based on Tencent SCF

faas image-processing scf serverless tencent

Last synced: 13 Aug 2025

https://github.com/sudodevinci/skyimager-obfuscated

Public facing version of the devinci.cloud website functionality, with appropriate obfuscation and censorship.

arduino cpp data-science esp32 esp32-arduino flask image-processing mysql object-detection ota-update

Last synced: 21 Jan 2026

https://github.com/johnnychen94/localbinarypatterns.jl

image-feature-extraction image-processing julia

Last synced: 27 Jul 2025

https://github.com/xp-framework/imaging

Imaging APIs for the XP Framework

gd image-processing php7 php8 xp-framework

Last synced: 24 Apr 2025

https://github.com/ssoad/pytorch-imagesegementation

Human Segmentation using PyTorch

image-processing image-processing-python image-segmentation image-segmentation-pytorch pytorch-cnn pytorch-implementation

Last synced: 04 Jul 2025

https://github.com/vforsh/nine-slice-editor

Nine Slice Editor for PhaserJS

game-development image-processing nine-patch nine-slice phaser

Last synced: 18 Apr 2026

https://github.com/zecat/cardscan

Extract black bordered frame in an image, adjust perspective, crop and rotate.

card image-processing opencv-python perspective-transformation scanner sheet

Last synced: 16 Mar 2025

https://github.com/prithivsakthiur/trash-net

Trash-Net is an image classification vision-language encoder model fine-tuned from google/siglip2-base-patch16-224 for a single-label classification task. It is designed to classify images of waste materials into different categories using the SiglipForImageClassification architecture

classification google gradio huggingface-transformers image-classification image-processing pillow python torch trash vision-transformer

Last synced: 09 Apr 2025

https://github.com/mcrd25/python-image-gen

Simple python based app/script using DALL-E

ai dalle2 image image-generation image-processing openai openai-api python python3 text-completion

Last synced: 07 Jan 2026

https://github.com/o98k-ok/img-outline

🎅 Add a charming background to your picture. 🎅

golang image-merge image-processing production screenshot

Last synced: 16 Mar 2025

https://github.com/yuvaraj3855/preocr

Fast document classification and OCR detection. Analyzes any file type to determine if OCR is needed, saving time and money on unnecessary processing.

computer-vision document-analysis document-classification document-intelligence document-processing document-understanding file-analysis image-processing layout-analysis ocr ocr-detection opencv pdf pdf-analysis pdf-parsing preprocessing python python-library text-detection text-extraction

Last synced: 16 Feb 2026

https://github.com/antosiowsky/vein-scanner

A portable vein scanner with real-time vein pattern projection using IR imaging and a mini projector. Designed to assist in medical procedures requiring precise vein access.

image-processing ir projection raspberry-pi vein-biometrics

Last synced: 07 Jan 2026

https://github.com/rik-sarkar-07/machine-intelligence

Machine intelligence is advanced computing that enables a technology (a machine, device, or algorithm) to interact with its environment intelligently,

computer-vision deep-learning feature-extraction image-processing machine-learning matplotlib opencv python pytorch sklearn tensorflow

Last synced: 02 Apr 2026

https://github.com/frosteen/python_snippets

A collection of python snippets that I often use for my freelance projects.

automation databases graphical-user-interface hardware-development image-processing machine-learning object-detection python snippets software-development web-scrapping

Last synced: 12 Aug 2025

https://github.com/camjc/batch-image-comparison

Uses GraphicsMagick to visually match up two folders of images with different filenames.

compare comparison diff graphicsmagick image-processing imagemagick

Last synced: 22 Feb 2026

https://github.com/moicci/cv2operator

simple library to input various shapes like polygon rectangle and so on.

image-processing opencv opencv-python python

Last synced: 21 Feb 2026

https://github.com/cyberfantics/picpdf-maker

picPDF Maker is a simple web app that converts images into customizable PDF files. With options for page size, orientation, margins, and colors, users can create high-quality PDFs easily. The app also features a dark mode for a better viewing experience.

cyberfantics hacktoberfest hacktoberfest-accepted hacktoberfest2024 image-processing image-to-pdf jpeg-to-pdf open-source pngtopdf programming python pythonprojects streamlit web-application

Last synced: 13 Apr 2026

https://github.com/avivharuzi/compare-images

Compare images by every pixel in the browser

angular browser canvas image image-processing javascript typescript

Last synced: 21 Apr 2026

https://github.com/gitfrandu4/40982-p1

Repositorio de la Práctica 1 en Visión por Computador, explorando el uso de OpenCV para crear imágenes artísticas, manipular píxeles y capturar video. Incluye ejercicios como diseño de un tablero de ajedrez, estilo Mondrian, y un efecto “Pop Art” con la cámara web.

computer-vision image-processing mondrian-style numpy opencv pop-art python visual-art webcam-capture