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Questions tagged [image-capture]

374 questions
6
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2 answers

captureStillImageAsynchronouslyFromConnection without JPG intermediary

I'm trying to get as good an image as possible from the camera, but can only find examples that captureStillImageAsynchronouslyFromConnection and then go straight to: NSData *imageData = [AVCaptureStillImageOutput…
Kaolin Fire
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5
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4 answers

Capture high-resolution image snapshots from webcam, in Java

Anyone knows a Java library which can be used for the purpose of capturing high-resolution image snapshots from a webcam? More precisely: - Detect the available webcams (laptops may have a built-in one and an external one attached trough an USB…
Michael
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1 answer

Capture image with GPUImage filter on Swift

I'm using GPUImage Framework for Image filters. I have applied the ToonFilter() on camera for cartoon filter effect. My issue is while capture image on camera with ToonFilter effect with GPUImage. Below is the code to show the ToonFilter with…
Akash Thakkar
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5
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1 answer

Cordova: how to take a picture without using camera app

I'm working on an Android App with Apache Cordova. I'd like to take a picture without opening camera application. I'd like the camera shoot by clicking a button from my app and save the picture on a specific destination with no interaction with the…
ciz974
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5
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2 answers

converting webpage into jpeg image using java

I am building a web application, in Java, where i want the whole screenshot of the webpage, if i give the URL of the webpage as input. The basic idea i have is to capture the display buffer of the rendering component..I have no idea of how to do…
ravi
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5
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5 answers

Insight on Multiple Webcam Capture with python and OpenCV vs VideoCapture

I'm experimenting with trying to capture an image from multiple webcams simultaneously (or near-simultaneously). I've been playing with OpenCV and with VideoCapture and programming in python. But have some confusion and hoped someone could help…
Jay
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5
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2 answers

Image Capture in C#

I'm working on a home project that involves comparing images to a database of images (using a quadrant - or so - histogram approach). I wanted to know what my options are in regards to web cams or other image capture devices that: Are easy to work…
cfeduke
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5
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4 answers

Capture a screenshot from an online video stream

I need to capture screenshots from an rtmp or http video stream. I want to capture a screenshot each 10 seconds and save it as a png or jpg file. I havnt been able to find any programs that does this for me so I was thinking of writing an…
Flatron
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5
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1 answer

echo "example" | clip, adds unwanted linebreak

So - I'm using an image capture tool (snagit). By default, the image itself is saved to the clipboard (after a capture). I would prefer that the image's path stored in the clipboard. The application allows me to (instead) save the file, and pass the…
Jack Barker
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4
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1 answer

fastest method to capture game screen shots in c#?(more than20 images per second)

How can i make screenshoots to the entire game screen very fast? Somthing like 20-30 per second?(i want to convert them to video) [[1]] I've tried WMEncoder.Results were that WMEncoder can capture the screen and regions of screen only in a video…
ehsanff
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4
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0 answers

Capturing a picture in c++ using v4l2, explaining the process

I have been struggling with making a c++ code for capturing a picture from web-camera. I successfully did it, but I would like some clarification about the process i took. So my code can be described in 6 steps, i will write them here along with my…
mcf1lmnfs
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4
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2 answers

Microsoft HoloLens image capture not working

I am trying to capture an image using HoloLens. I accept the permission to use the HoloLens camera. I am using this code using UnityEngine; using System.Collections; using System.Linq; using UnityEngine.XR.WSA.WebCam; using UnityEngine.UI; public…
MrRobot9
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4
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AVCamDemo: completionHandler code not hit

I am streamlining the AVCamDemo project so that I can experiment with capturing only still images. Below is the new code for captureStillImage() method: - (void) captureStillImage { AVCaptureConnection *stillImageConnection = [AVCamUtilities…
Sam
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4
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3 answers

Error TS2304: Cannot find name 'ImageCapture' and already installed @types/w3c-image-capture

I'm developing an PWA with Ionic 4 and Angular 7. I need to access the webcam if it exists and then render in a canvas. In this process I use ImageCapture (https://developer.mozilla.org/en-US/docs/Web/API/ImageCapture). let constrains = { …
hsantos
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4
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1 answer

Get webcam image?

How do I verify if there is a webcam available and if so get a screenshot of what it can capture ? I was initially looking for an easy to use library but I guess none exist and most of the information I found was like from 2006 and around. For…
Guapo
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