leonmavr

/*
	takes the root of the tree, a new node
	where the last parent will be written to,
	a counter passed as 0, and max = inf
	
	The recursions can be unwrapped in the 
	following pseudocode, based on Depth 
	First Search

	visited = {}

leonmavr

int count_spaces (FILE* f) {
        int spaces = 0;
        char chIn;
  
        for ( chIn = '\0'; chIn != '\n'; spaces +=  ( chIn = fgetc(f) ) == ' '   );
        return spaces;
}

leonmavr

    cap = cv2.VideoCapture('datasets/gesture/test_02.mp4')
    ret, old_frame = cap.read()
    frame1 = old_frame 

    cropper = MouseRoi(frame1)
    cropper.crop()
    cropper.qimshow(cropper.get_cropped())
    (c1,r1), (c0,r0) = cropper.clicks_xy 
    
    mask_roi = np.zeros(cv2.cvtColor(frame1, cv2.COLOR_BGR2GRAY).shape, np.uint8) 

leonmavr

#!/usr/bin/env python

###
# Original: https://github.com/shantnu/Webcam-Face-Detect
import cv2
import sys

faceCascade = cv2.CascadeClassifier("../cascade/hand.xml")

video_capture = cv2.VideoCapture(0)

leonmavr

# Based on: https://stackoverflow.com/a/36625937


cmake_minimum_required(VERSION 3.10)
project(opencvTest)

set(CMAKE_CXX_STANDARD 17)
find_package(OpenCV REQUIRED)
include_directories(${OpenCV_INCLUDE_DIRS})
add_executable(opencvTest opencv_test.cpp)

leonmavr

import cv2

cap = cv2.VideoCapture(0)

# Check if the webcam is opened correctly
if not cap.isOpened():
    raise IOError("Cannot open webcam")

while True:
    valid, frame = cap.read()

leonmavr

float gaussian(float x, float std, float ampl) {
  return ampl * 1/(std*sqrt(TWO_PI)) * exp(-1/2.0 * x/std * x/std);
}


float gaussianNonNrm(float x, float std, float ampl) {
  //println(x);
  return 1/(std*sqrt(TWO_PI)) * exp(-1/2.0 * x/std * x/std);
}

leonmavr

this_script_path = os.path.abspath(__file__)
this_script_folder = os.path.dirname(this_script_path)

leonmavr

import numpy as np
from cv2 import cv2
from typing import List, Union
import doctest

def update_histogram(grad_magn: float,
        grad_angle: float,
        angle_bins: List,
        votes: Union[List, None] = None) -> List[float]:
    """update_histogram. Updates histogram of magnitudes (aka 'votes') vs

leonmavr

#include <iostream>
#include <vector>
#include <assert.h>
#include <cmath>
#include <png++/png.hpp>

using namespace std;

typedef vector<double> Array;
typedef vector<Array> Matrix;