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https://github.com/UsingNet/nvjpeg-python
nvjpeg for python
https://github.com/UsingNet/nvjpeg-python
nvjpeg python
Last synced: 7 days ago
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nvjpeg for python
- Host: GitHub
- URL: https://github.com/UsingNet/nvjpeg-python
- Owner: UsingNet
- License: mit
- Created: 2021-01-29T11:17:35.000Z (almost 4 years ago)
- Default Branch: master
- Last Pushed: 2023-01-27T14:57:44.000Z (almost 2 years ago)
- Last Synced: 2024-10-01T16:36:49.613Z (about 1 month ago)
- Topics: nvjpeg, python
- Language: C++
- Homepage:
- Size: 429 KB
- Stars: 92
- Watchers: 5
- Forks: 24
- Open Issues: 18
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
NvJpeg - Python
---------------------------
## Require
* nvjpeg
* cuda >= 10.2
* numpy >= 1.7
* python >= 3.6
* gcc >= 7.5
* make >= 4.1
## System
* Linux
* Windows
* Nvidia Jetson OS
## Install
```shell
pip install pynvjpeg
```
## Usage
### 0. Init PyNvJpeg
```python
from nvjpeg import NvJpeg
nj = NvJpeg()
```
### 1. Use PyNvJpeg
#### Read Jpeg File to Numpy
```python
img = nj.read("_JPEG_FILE_PATH_")
# like cv2.imread("_JPEG_FILE_PATH_")
```
#### Write Numpy to Jpeg File
```python
nj.write("_JPEG_FILE_PATH_", img)
# or nj.write("_JPEG_FILE_PATH_", quality)
# int quality default 70, mean jpeg quality
# like cv2.imwrite("_JPEG_FILE_PATH_", img)
```
#### Decode Jpeg bytes in variable
```python
img = nj.decode(jpeg_bytes)
# like cv2.imdecode(variable)
```
#### Encode image numpy array to bytes
```python
jpeg_bytes = nj.encode(img)
# or with jpeg quality
# jpeg_bytes = nj.encode(img, 70)
# int quality default 70, mean jpeg quality
# like cv2.imencode(".jpg", variable)[1]
```