visionlib 1.4.5

A simple, easy to use and customizeble cv library

Visionlib

A simple high level API made for assisting in CV-related projects.

Features

• Track faces using
  • MTCNN module
  • Dlib hog Based detector
  • Opencv Haar cascades
  • Dnn based model
• Predict Gender
• Detect Objects
  • Yolo v3
  • tiny-yolo

Installation

Note: Windows compatibility is not tested

Dependencies

sudo apt-get install build-essential cmake pkg-config

sudo apt-get install libx11-dev libatlas-base-dev

sudo apt-get install libgtk-3-dev libboost-python-dev

This should install Dependencies required by dlib.

pip install visionlib

This will install visionlib.

Optional

If You want to install from source git clone https://github.com/ashwinvin/Visionlib.git

cd visionlib

pip install .

Face Detection

Detecting face in an image is easy . This will return the image with bounding box and box coordinates.

from visionlib.face.detection import FDetector

detector = FDetector()

detector.detect_face(img, show=True)

This would detect face and display it automatically.

detector.set_detector("mtcnn")

Don't like the default detector?, change it like this.

Examples

Gender Detection

Once face is detected, it can be passed on to detect_gender() function to recognise gender. It will return the labels (man, woman) and associated probabilities. Like this

from visionlib.gender.detection import GDetector
detector = GDetector()
pred, confidence = detector.detect_gender(img)

Example

Object Detection

Detecting common objects in the scene is enabled through a single function call detect_objects(). It will return the labelled image for the detected objects in the image. By default it uses yolo v3-tiny model.

from visionlib.object.detection import Detection
import cv2
detector = Detection()
d_img = detector.detect_objects(img)

Example

Object Classification

You can also do object classification with the CDetector class.

• Currently it has three detector's
  • Inception v3
  • VGG 16
  • Xception

from visionlib.object.classifier.detection import CDetector
predictions = detector.predict(img)

Example

Output

Detected coffee_mug with confidence 73.33419919013977
Detected cup with confidence 8.287159353494644
Detected pitcher with confidence 3.0803868547081947
Detected coffeepot with confidence 1.2160349637269974
Detected water_jug with confidence 0.8919732645153999

Keypoint Detection

You can pass a detected face into the keypoint detection and get all the detected keypoints.

• Currently it has two detector's :
  • Dlib's 68 keypoint shape detector
  • MTCNN's 5 point detector

from visionlib.keypoints.detection import KDetector
kdetector = KDetector()
points = kdetector.detect_keypoints(img, rects=boxes)

Example

GPU support

You can leverage your gpu's power by enabling it like this.

Face Detection detector.detect_face(img, show=True, enable_gpu=True)

Object Detection detector.detect_objects(img, enable_gpu=True)

Gender Detection detector.detect_gender(img, enable_gpu=True)

Loading videos from YouTube

If you want load videos from YouTube, you can use the load_video()function.

from visionlib.utils.webutils import web
web_util = web()
video = web.load_video(url)

You can now pass the video to any function. It does contain the video but it instead grabs the source URL of the video

Documentation

Complete Documentation can be found on https://ashwinvin.github.io/Visionlib/

For example check the examples directory

None of the images in the this repository are owned by me. They belong to there respective owners.