143 lines
3.2 KiB
Python
143 lines
3.2 KiB
Python
#!/usr/bin/python3
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# Python imports
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# Lib imports
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import cv2
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import pyautogui
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# Application imports
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image_width = 640
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image_height = 480
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view_rect_width = 120
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view_rect_height = view_rect_width
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outine_color = 0, 0, 255 # bgr NOT rgb
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lr_full_padding = image_width - view_rect_width
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tb_full_padding = image_height - view_rect_height
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lr_padding = int(lr_full_padding / 2)
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tb_padding = int(tb_full_padding / 2)
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start_index = (image_width * tb_padding) + lr_padding
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start_pos = start_index
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start_y = int(tb_padding)
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start_x = int(lr_padding)
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slices = []
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def generate_slice_info():
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global view_rect_width
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global view_rect_height
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global lr_padding
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global start_pos
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global slices
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slices.append([start_pos, start_pos + view_rect_width])
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for i in range(view_rect_height - 1):
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start_pos += (view_rect_width + lr_full_padding)
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end_pos = start_pos + view_rect_width
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slices.append([start_pos, end_pos])
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def draw_square_on_linear_arry(pixels):
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global slices
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# draw top
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slice = slices[0]
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i = slice[0]
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while i < slice[1]:
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pixel = pixels[i];
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pixel[0] = 255
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pixel[0] = 0
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pixel[0] = 0
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i += 1
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# draw middle
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i = 1
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size = len(slices) - 1
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while i < size:
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slice = slices[i]
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pixel = pixels[ slices[0] ];
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pixel[0] = 255
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pixel[0] = 0
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pixel[0] = 0
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pixel2 = pixels[ slices[1] - 1 ];
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pixel2[0] = 255
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pixel2[0] = 0
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pixel2[0] = 0
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i += 1
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# draw bottom
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slice = slices[ len(slices) - 1]
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i = slice[0]
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while i < slice[1]:
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pixel = pixels[i];
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pixel[0] = 255
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pixel[0] = 0
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pixel[0] = 0
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i += 1
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def draw_square_on_2d_arry(pixels):
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# draw top
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i = start_x
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j = start_x + view_rect_width
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while i < j:
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pixels[start_y][i] = outine_color
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i += 1
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# draw middle
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y_pos = start_y + 1
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y_end_pos = (start_y + view_rect_height) - 1
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while y_pos < y_end_pos:
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pixels[y_pos][lr_padding] = outine_color
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pixels[y_pos][lr_padding + view_rect_width] = outine_color
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y_pos += 1
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# draw bottom
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bottom_row = start_y + view_rect_height
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i = start_x
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j = start_x + view_rect_width
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while i < j:
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pixels[bottom_row][i] = outine_color
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i += 1
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def process_frame(pixels):
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draw_square_on_2d_arry(pixels)
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cv2.imshow('frame', pixels)
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def capture_video(camera):
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while(True):
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rendered, data = camera.read()
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frame = cv2.cvtColor(data, cv2.COLOR_BGR2RGB)
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# gray_frame = cv2.cvtColor(frame, cv2.COLOR_RGB2GRAY)
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# Use 'q' key to quit
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if cv2.waitKey(1) & 0xFF == ord('q'):
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break
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if not rendered: continue
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process_frame(frame)
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def process_video():
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camera = cv2.VideoCapture(1)
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camera.set(cv2.CAP_PROP_FRAME_WIDTH, image_width)
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camera.set(cv2.CAP_PROP_FRAME_HEIGHT, image_width)
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# generate_slice_info()
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capture_video(camera)
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camera.release()
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cv2.destroyAllWindows()
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if __name__ == "__main__":
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process_video() |