https://github.com/zxj5470/opencv-kotlinnative
Call OpenCV v2.4 in Kotlin-Native
https://github.com/zxj5470/opencv-kotlinnative
kotlin-native opencv-kotlinnative opencv2
Last synced: about 1 year ago
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Call OpenCV v2.4 in Kotlin-Native
- Host: GitHub
- URL: https://github.com/zxj5470/opencv-kotlinnative
- Owner: zxj5470
- Created: 2017-12-13T08:03:17.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2018-05-09T05:50:09.000Z (about 8 years ago)
- Last Synced: 2025-02-12T06:55:52.483Z (over 1 year ago)
- Topics: kotlin-native, opencv-kotlinnative, opencv2
- Language: CMake
- Homepage:
- Size: 765 KB
- Stars: 15
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# OpenCV-KotlinNative
- [OpenCV-KotlinNative](#opencv-kotlinnative)
- [Dependencies](#dependencies)
- [Build Environment](#build-environment)
- [Runtime dependencies](#runtime-dependencies)
- [Environment](#environment)
- [Run](#run)
- [sample1: Hello Lena](#sample1-hello-lena)
- [sample2: Scale a image](#sample2-scale-a-image)
- [C_Interop](#c_interop)
- [Misc (Linux Ubuntu/Debian/Deepin)](#misc-linux-ubuntudebiandeepin)
## Dependencies
### Build Environment
- OS:
- Linux (Ubuntu 18.04 + Deepin 15.5 Desktop)
- sources build [Misc (Linux Ubuntu/Debian/Deepin)](#misc-linux-ubuntudebiandeepin)
- macOS Sierra 10.12
- `brew install opencv@2`
- Default Directory `/usr/local/opt/opencv@2`
- [Kotlin Native](https://github.com/JetBrains/kotlin-native) version: 0.7
- OpenCV 2.4.13
- CLion 2018.1.2
### Runtime dependencies
- if Ubuntu or Debian
- libgtk2.0-dev
- pkg-config
- libopencv2_core
- libopencv2_highgui
## Environment
- macOS Sierra 10.12
- CLion (With Kotlin and Kotlin/Native Plugins)
- JDK 1.8
## Run
### sample1: Hello Lena
[hello_lena-c_interop_version](https://github.com/zxj5470/OpenCV-KotlinNative/blob/master/samples/hello_lena/c_interop_version/CInterop.kt)
### sample2: Scale a image
Scale
- It needs about 30 seconds ... please wait a moment
- (needs about 15 seconds in OS X with Intel i5 2.3 GHz and about 7 seconds in Linux/Ubuntu(Deepin Desktop Intel i5)
- so if you have a better algorithm to enhance the effect please tell me....)
## C_Interop
What you can interact-operator:
- libopencv2_core
- libopencv2_highgui (which include the former)
- libopencv2_imgproc (such as cvThreshold)
```kotlin
import libopencv2_highgui.*
```
## Misc (Linux Ubuntu/Debian/Deepin)
if your libs were installed in `/usr/local/lib` (Makefile settings with build OpenCV2)
like
```
cd opencv2.4.*
mkdir build
cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local
```
then do these as follows:
```bash
$ vi /etc/ld.so.conf
```
append `/usr/local/lib` at the end:
```
include /etc/ld.so.conf.d/*.conf # default
/usr/local/lib
```
then the command line to flush it.
```bash
sudo ldconfig
```