Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged OpenCV
0
votes
513
views
1
answer
opencv - Android camera2 output to ImageReader format YUV_420_888 still slow
I'm trying to get the Android camera2 running in the background service, then ... captureRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER, // CaptureRequest.CONTROL_AF_TRIGGER...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
1.0k
views
1
answer
opencv - Finding the size in bytes of cv::Mat
I'm using OpenCV with cv::Mat objects, and I need to know the number of bytes that my matrix occupies in order to ... a cv::Mat size in bytes? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
822
views
1
answer
opencv - Error using cv2.findContours(), with python
I've recently started learning OpenCV on Python. I'm referring to this tutorial here, to get some help on ... this issue will be appreciated. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
418
views
1
answer
opencv - Generating good training data for haar cascades
I am trying to build haar cascades for doing OCR of a specific font; one classifier per character. I can ... down for efficiency anyway? Thanks! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
602
views
1
answer
opencv - How to use Android Camera in Background?
I'm currently developing an app which need to record video in background and process it. (It needs to get ... you for answering the question. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
621
views
1
answer
opencv - Otsu thresholding for depth image
I am trying to substract background from depth images acquired with kinect. When I learned what otsu thresholding is I ... ); cv::waitKey(1); See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
746
views
1
answer
opencv - How to resize window in opencv2 python
I am using opencv 2 with a webcam. I can get the video stream and process it, but I can't seem to figure out ... images so that I can see them? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
686
views
1
answer
opencv - What does the python interface to opencv2.fillPoly want as input?
I'm trying to draw a polygon using the python interface to opencv, cv2. I've created an empty image, ... that error turned up nothing useful. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
527
views
1
answer
opencv - UnsatisfiedLinkError: n_Mat while using opencv2.4.3 with android 4.0
i am using opencv in android. but when i am adding Mat() in my code my application unexpectedly stops after ... help. thanks in advance :) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
435
views
1
answer
opencv - UnsatisfiedLinkError: n_Mat while using opencv2.4.3 with android 4.0
i am using opencv in android. but when i am adding Mat() in my code my application unexpectedly stops after ... help. thanks in advance :) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
716
views
1
answer
opencv - how to save Mat image in filestorage
I want to save a floating point one-channel image and I don't want to convert it. So I decided to use filestorage ... ); Mat img; fs >> img; See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
636
views
1
answer
opencv - Cannot import cv2 in python in OSX
I have installed OpenCV 3.1 in my Mac, cv2 is also installed through pip install cv2. vinllen@ $ pip install ... list online, but cannot work. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
923
views
1
answer
opencv - Fit Quadrilateral (Tetragon) to a blob
After applying different filtering and segmentation techniques, I end up with an image like this: I have access to ... solving such a problem? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
738
views
1
answer
opencv - EmguCV - nvcuda.dll could not be found
I've been asked to build a real-time face recognition application, and after some looking around I've decided ... that helps. Any suggestions? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
1.3k
views
1
answer
opencv - how to superimpose heatmap on a base image?
Please look at this github page. I want to generate heat maps in this way using Python PIL,open cv or matplotlib ... image shape is (800,800,3) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
664
views
1
answer
opencv - Convert a folder comprising jpeg images to hdf5
Is there a way to convert a folder comprising .jpeg images to hdf5 in Python? I am trying to build a ... for classification of images. Thanks! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
817
views
1
answer
opencv c++: converting image matrix from unsigned char to float
I have a problem with converting an image matrix. I use: Mat image = imread(image_name, 0); to read an image ... char. What am I doing wrong? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
737
views
1
answer
opencv - Image Sharpening Using Laplacian Filter
I was trying to sharpening on some standard image from Gonzalez books. Below are some code that I ... Result Desired Result Absolute Laplace See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
1.3k
views
1
answer
opencv - Python unsharp mask
I want to use unsharp mask on a 16 Bit Image. The Image has 640 x 480 Pixels and is saved in a ... UnsharpImage = Image + (WightFaktor*Mask1) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
542
views
1
answer
opencv - "The program can't start because opencv_world300.dll is missing from your computer" error in C++
I want to compile an opencv Console C++ program in Visual Studio 2013. This is my code: #include "stdafx.h" ... How can I fix this problem? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
736
views
1
answer
opencv - Camera motion from corresponding images
I'm trying to calculate a new camera position based on the motion of corresponding images. the images ... .8236506374002566, 0.3446041331317597] See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
755
views
1
answer
opencv - open cv ios video processing
I'm trying to do the tutorial found here for ios video processing with openCv framework. I've successfully loaded ... . I will try and update See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
390
views
1
answer
opencv - Android: Recording and Streaming at the same time
This is not really a question as much as it is a presentation of all my attempts to solve one of the most ... copy the bytes or intercept it. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
599
views
1
answer
opencv - Finger/Hand Gesture Recognition using Kinect
Let me explain my need before I explain the problem. I am looking forward for a hand controlled application. ... accepted as a good suggestion. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
534
views
1
answer
opencv - rotated face detection
Is there a library for detecting faces that have been rotated in the image plane? Or is there some way in ... detection with opencv to do it? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
694
views
1
answer
opencv - Need Haar Casscades for Nose, Eyes & Lips(Mouth)
I need Haar Cascades xml files for Mouth, Eyes & Nose. Do provide me useful links. Any kind of help would be highly appreciated. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
2.5k
views
1
answer
opencv - How to apply CLAHE on RGB color images
CLAHE is Contrast Limited Adaptive Histogram Equalization and a source in C can be found at http://tog.acm.org/ ... images)? If yes, how? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
0
votes
686
views
1
answer
opencv - Coffee beans separation algorithm
What is proper algorithm for separating (counting) coffee beans on binary image? Beans can touch and partially ... (moving people separation). See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
opencv
Page:
« prev
1
2
3
4
5
6
7
8
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] 如下这种网址,只能在微信客户端打开,有什么办法能让他在浏览器打开呢?
[2] nginx 如何让某个URL的 get 请求404?
[3] java - Thread.sleep() starts before my JButton text changes (The animation is too long) How to prevent this?
[4] PHP的协程到底是什么意思?
[5] DolphinDB的数据回放功能和流计算引擎在多机集群中如何实现资源的高效利用
[6] 问思否你的粘贴浮窗为什么那么恶心
[7] amazon s3 - Heroku MERN app deploys images to S3; How to access them?
[8] vscode的command+d如何跳过某一项?
[9] How can I send a file using to a HTTP server and read it?
[10] javascript - Node: error:25078067:DSO support routines:win32_load:could not load the shared library
2.1m
questions
2.1m
answers
60
comments
56.8k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...