Added scripts and examples

src/Python/Scripts/hsv-color-thresholder.py

@@ -0,0 +1,80 @@
+import cv2
+import sys
+import numpy as np
+
+def nothing(x):
+    pass
+
+
+# Create a window
+cv2.namedWindow('image')
+
+# create trackbars for color change
+cv2.createTrackbar('HMin','image',0,179,nothing) # Hue is from 0-179 for Opencv
+cv2.createTrackbar('SMin','image',0,255,nothing)
+cv2.createTrackbar('VMin','image',0,255,nothing)
+cv2.createTrackbar('HMax','image',0,179,nothing)
+cv2.createTrackbar('SMax','image',0,255,nothing)
+cv2.createTrackbar('VMax','image',0,255,nothing)
+
+# Set default value for MAX HSV trackbars.
+cv2.setTrackbarPos('HMax', 'image', 179)
+cv2.setTrackbarPos('SMax', 'image', 255)
+cv2.setTrackbarPos('VMax', 'image', 255)
+
+# Initialize to check if HSV min/max value changes
+hMin = sMin = vMin = hMax = sMax = vMax = 0
+phMin = psMin = pvMin = phMax = psMax = pvMax = 0
+
+# output = image
+wait_time = 33
+
+
+image_width      = 640
+image_height     = 480
+camera = cv2.VideoCapture(1)
+camera.set(cv2.CAP_PROP_FRAME_WIDTH, image_width)
+camera.set(cv2.CAP_PROP_FRAME_HEIGHT, image_width)
+
+while(1):
+    captured, data = camera.read()
+    if not captured: continue
+
+    image          = data
+
+    # get current positions of all trackbars
+    hMin = cv2.getTrackbarPos('HMin','image')
+    sMin = cv2.getTrackbarPos('SMin','image')
+    vMin = cv2.getTrackbarPos('VMin','image')
+
+    hMax = cv2.getTrackbarPos('HMax','image')
+    sMax = cv2.getTrackbarPos('SMax','image')
+    vMax = cv2.getTrackbarPos('VMax','image')
+
+    # Set minimum and max HSV values to display
+    lower = np.array([hMin, sMin, vMin])
+    upper = np.array([hMax, sMax, vMax])
+
+    # Create HSV Image and threshold into a range.
+    hsv = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
+    mask = cv2.inRange(hsv, lower, upper)
+    output = cv2.bitwise_and(image,image, mask= mask)
+
+    # Print if there is a change in HSV value
+    if( (phMin != hMin) | (psMin != sMin) | (pvMin != vMin) | (phMax != hMax) | (psMax != sMax) | (pvMax != vMax) ):
+        print("(hMin = %d , sMin = %d, vMin = %d), (hMax = %d , sMax = %d, vMax = %d)" % (hMin , sMin , vMin, hMax, sMax , vMax))
+        phMin = hMin
+        psMin = sMin
+        pvMin = vMin
+        phMax = hMax
+        psMax = sMax
+        pvMax = vMax
+
+    # Display output image
+    cv2.imshow('image',output)
+
+    # Wait longer to prevent freeze for videos.
+    if cv2.waitKey(wait_time) & 0xFF == ord('q'):
+        break
+
+cv2.destroyAllWindows()

src/Python/Scripts/sleep-sort.py

@@ -0,0 +1,38 @@
+import sys
+import threading
+import random
+
+
+# python ./sleep_sort.py 5 3 6 3 1 4 7
+
+
+def delay_print(number):
+    print(number)
+
+
+def sleep_sort(number, delay):
+    wait_time    = number / delay  
+    timer        = threading.Timer(wait_time, delay_print, (number,))
+    timer.start()
+
+
+def argv_sleep_sort(arry, delay):
+    for arg in arry:
+        number = int(arg)
+        sleep_sort(number, delay)
+
+def random_sleep_sort():
+    arry  = range(1, 300)
+    delay = len(arry)
+    for arg in arry:
+        number = int(arg)
+        sleep_sort(number, delay)
+
+if __name__ == "__main__":
+    arry  = sys.argv[1:]
+    delay = len(arry)
+    if delay > 0:
+        argv_sleep_sort(arry, delay)
+    else:
+        print("Usage:\n\tpython ./sleep-sort.py 5 3 6 3 1 4 7")
+        # random_sleep_sort()

src/Python/Scripts/video-mouse.py

@@ -3,6 +3,7 @@
 # Python imports
 
 # Lib imports
+import numpy as np
 import cv2
 import pyautogui
 
@@ -15,6 +16,7 @@ image_height     = 480
 view_rect_width  = 120
 view_rect_height = view_rect_width
 outine_color     = 0, 0, 255  #   bgr  NOT  rgb
+fill_color       = 55, 0, 0  #   bgr  NOT  rgb
 lr_full_padding  = image_width  - view_rect_width
 tb_full_padding  = image_height - view_rect_height
 lr_padding       = int(lr_full_padding / 2)
@@ -26,6 +28,10 @@ start_x          = int(lr_padding)
 slices           = []
 
 
+class SlicesException(Exception):
+    ...
+
+
 
 def generate_slice_info():
     global view_rect_width
@@ -43,6 +49,8 @@ def generate_slice_info():
 
 def draw_square_on_linear_arry(pixels):
     global slices
+    if not slices:
+        raise SlicesException("Must call generate_slice_info before calling draw_square_on_linear_arry...")
 
     # draw top
     slice = slices[0]
@@ -109,22 +117,89 @@ def draw_square_on_2d_arry(pixels):
         i += 1
 
 
+def flatten_colors_in_change_region(pixels):
+    i = start_y
+    j = start_y + view_rect_height
+
+    while i < j:
+        k = start_x
+        l = start_x + view_rect_width
+
+        while k < l:
+            b, g, r = pixels[i][k]
+
+            if b > 150 and g > 150 and r > 150:
+                pixels[i][k] = 255, 255, 255
+            elif b < 75 and g < 75 and r < 75:
+                pixels[i][k] = 255, 255, 255
+            else:
+                pixels[i][k] = 125, 125, 125
+
+            k += 1
+
+        i += 1
+
+def detect_change_region(pixels):
+    i = start_y
+    j = start_y + view_rect_height
+
+    while i < j:
+        k = start_x
+        l = start_x + view_rect_width
+
+        while k < l:
+            b, g, r = pixels[i][k]
+            if (r > 140 and r < 210) and ((b > 60 and g > 60) and (b < 80 and g < 80)):
+                pixels[i][k] = 255, 255, 255
+            else:
+                pixels[i][k] = 0, 0, 0
+
+            # if r > 100 and (b < 160 and g < 160):
+            #     pixels[i][k] = 255, 255, 255
+            # else:
+            #     pixels[i][k] = 0, 0, 0
+
+            k += 1
+
+        i += 1
+
+def bgr_separated_output_displays(pixels):
+    b = pixels.copy()
+    b[:, :, 1] = 0
+    b[:, :, 2] = 0
+    cv2.imshow('Blue Channel', b)
+
+    g = pixels.copy()
+    g[:, :, 0] = 0
+    g[:, :, 2] = 0
+    cv2.imshow('Green Channel', g)
+
+    r = pixels.copy()
+    r[:, :, 0] = 0
+    r[:, :, 1] = 0
+    cv2.imshow('Red Channel', r)
 
 def process_frame(pixels):
+    flatten_colors_in_change_region(pixels)
+    # detect_change_region(pixels)
+    # draw_square_on_linear_arry(pixels)
     draw_square_on_2d_arry(pixels)
-    cv2.imshow('frame', pixels)
+    cv2.imshow('Track Motion', pixels)
 
 def capture_video(camera):
     while(True):
-        rendered, data = camera.read()
+        captured, data = camera.read()
-        frame = cv2.cvtColor(data, cv2.COLOR_BGR2RGB)
-        # gray_frame = cv2.cvtColor(frame, cv2.COLOR_RGB2GRAY)
 
         # Use 'q' key to quit
         if cv2.waitKey(1) & 0xFF == ord('q'):
             break
 
-        if not rendered: continue
+        if not captured: continue
+
+        frame          = data
+        # frame          = cv2.cvtColor(data, cv2.COLOR_BGR2HSV)
+        # frame          = cv2.cvtColor(data, cv2.COLOR_BGR2RGB)
+        # gray_frame     = cv2.cvtColor(frame, cv2.COLOR_RGB2GRAY)
         process_frame(frame)
 
 def process_video():
@@ -132,7 +207,7 @@ def process_video():
     camera.set(cv2.CAP_PROP_FRAME_WIDTH, image_width)
     camera.set(cv2.CAP_PROP_FRAME_HEIGHT, image_width)
     
-    # generate_slice_info()
+    # generate_slice_info() # Note: precompute on 1d array the detection region
     capture_video(camera)
 
     camera.release()

src/Shell/self-extract.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+sed '0,/^#EOF#$/d' $0 | tar zx; exit 0
+#EOF#

src/Shell/sleep-sort.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+
+# ./sleep-sort.sh 5 3 6 3 1 4 7
+
+function f() {
+    sleep "$1"
+    echo "$1"
+}
+
+while [ -n "$1" ]; do
+    f "$1" &
+    shift
+done
+wait