streamz-opencv

Provide an opencv capture source for streamz.

Quickstart

Install streamz and streamz-opencv:

python -m pip install streamz streamz-opencv

Build your pipeline:

import cv2
from streamz import Stream
import streamz_opencv

def scale(img, scale=1.0):
    scale_percent = 60 # percent of original size
    width = int(img.shape[1] * scale)
    height = int(img.shape[0] * scale)
    dim = (width, height)
    resized = cv2.resize(img, dim, interpolation = cv2.INTER_AREA)
    return resized


def save(img, path):
    cv2.imwrite(path, img)

stream = Stream.from_opencv(0, asynchronous=True)
stream.map(scale, scale=0.5).sink(save, path='small.jpg')
stream.map(scale, scale=1.5).sink(save, path='big.jpg')
stream.start()

good to know

testing via pytest
dep management via venv+setup.py+pip-tools
see example usage in test

Metadata

Release files for streamz-opencv 0.1.1

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Source distribution (sdist)

Source distribution for streamz-opencv 0.1.1
File	Size	Uploaded	Provenance	Actions
streamz-opencv-0.1.1.tar.gz	3.5 kB	Jul 19, 2020	Without provenance	Details for streamz-opencv-0.1.1.tar.gz

Release files / streamz-opencv-0.1.1.tar.gz

Download URL	streamz-opencv-0.1.1.tar.gz
Size	3.5 kB
Tags	Source
SHA-256 checksum How to use checksums	`f4a45ce643ea3633ad74ae4fc2cd290befb5eedb38e8a70ab727408a988a48b9`
BLAKE2b-256 checksum How to use checksums	`71b8434f81d6db36bf2b5cea60357bd47d39d9a0553662ead654307956695843`
Upload date	Jul 19, 2020
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/3.2.0 pkginfo/1.5.0.1 requests/2.24.0 setuptools/41.2.0 requests-toolbelt/0.9.1 tqdm/4.48.0 CPython/3.7.7`

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0.1.1 This release

Jul 19, 2020 1 release file No provenance

0.1.0