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@@ -1,86 +0,0 @@ |
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import math |
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import time |
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import itertools as it |
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import cv2 |
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import colorsys |
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from pythonosc import udp_client |
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import numpy as np |
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DENSITY = 4 |
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RED = [0, 0, 255] |
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N_COLORS = 3 |
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LAST_MESSAGE_TIME = 0 |
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def draw_rectangle(frame, sp, ep): |
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""" Draw a rectangle on the frame """ |
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return cv2.rectangle(frame, sp, ep, RED, 1) |
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def analyze_block(frame, osc, index, sp, ep, send=False): |
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""" Analyze a block """ |
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block = frame[sp[1]:ep[1], sp[0]:ep[0], 0:3] |
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average_color = np.average(block, (0, 1)) / 255 |
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h, s, v = colorsys.rgb_to_hsv(*average_color) |
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# Configure the oscillator |
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if send: |
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print("Sending message", h, s, v) |
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osc.send_message( |
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"/radio", |
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[int(index), float(h), |
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float(s), float(v), .5]) |
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# Draw a blob of the average color |
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sp2 = tuple(int(x) for x in (2 * np.array(sp) + np.array(ep)) / 3) |
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ep2 = tuple(int(x) for x in (np.array(sp) + 2 * np.array(ep)) / 3) |
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frame = cv2.rectangle(frame, sp2, ep2, |
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[int(x * 255) for x in average_color], -1) |
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# Draw the image |
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for thickness, color in ((3, (0, 0, 0)), (1, (255, 255, 255))): |
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frame = cv2.putText(frame, |
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text=f"{h:.2f} {s:.2f} {v:.2f}", |
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org=(sp[0] + 10, sp[1] + 20), |
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fontScale=.5, |
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color=color, |
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fontFace=2, |
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thickness=thickness) |
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return frame |
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def analyze(frame, osc): |
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""" Analyze the full frame """ |
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global LAST_MESSAGE_TIME |
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height, width, d = frame.shape |
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n = DENSITY |
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m = math.ceil(n * (height / width)) |
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dx = width / n |
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dy = height / m |
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send = False |
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if time.time() - LAST_MESSAGE_TIME > 0.1: |
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LAST_MESSAGE_TIME = time.time() |
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for index, (y, x) in enumerate(it.product(range(m), range(n))): |
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sp = (int(x * dx), int(y * dy)) |
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ep = (int(x * dx + dx), int(y * dy + dy)) |
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frame = draw_rectangle(frame, sp, ep) |
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frame = analyze_block(frame, osc, index, sp, ep, True) |
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return frame |
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if __name__ == '__main__': |
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camera = cv2.VideoCapture("/dev/video2") |
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# camera = cv2.VideoCapture(0) |
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osc = udp_client.SimpleUDPClient("0.0.0.0", 5005) |
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while True: |
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ret, frame = camera.read() |
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frame = analyze(frame, osc) |
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cv2.imshow('Input', frame) |
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c = cv2.waitKey(1) |
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if c == 27: |
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break |
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camera.release() |
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cv2.destroyAllWindows() |