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御坂スバル
2024-09-23 23:00:38 +08:00
parent c7d5bd94f5
commit d4cda7e637
1 changed files with 37 additions and 27 deletions
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test/2024,9,23/homework.py
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@@ -4,22 +4,32 @@ import numpy as np
# 1 # 1
img = cv.imread("sample.jpg", cv.IMREAD_GRAYSCALE) img = cv.imread("sample.jpg", cv.IMREAD_GRAYSCALE)
img2 = cv.imread('sample.jpg', cv.IMREAD_GRAYSCALE) img2 = cv.imread('sample.jpg', cv.IMREAD_GRAYSCALE)
# 2 # 2
def draw_circle(event, x, y, flags, param): def draw_circle(event, x, y, flags, param):
if event == cv.EVENT_LBUTTONDOWN: if event == cv.EVENT_LBUTTONDOWN:
cv.circle(img, (x, y), 10, 0, -1) cv.circle(img, (x, y), 10, 0, -1)
# 4 # 4
alpha = 0.3 alpha = 0.3
beta = 80 beta = 80
def updateAlpha(x): def updateAlpha(x):
global alpha, img, img2 global alpha, img, img2
alpha = cv.getTrackbarPos('Alpha', 'modify_sample') alpha = cv.getTrackbarPos('Alpha', 'modify_sample')
alpha = alpha * 0.01 alpha = alpha * 0.01
img = np.uint8(np.clip((alpha * img2 + beta), 0, 255)) img = np.uint8(np.clip((alpha * img2 + beta), 0, 255))
def updateBeta(x): def updateBeta(x):
global beta, img, img2 global beta, img, img2
beta = cv.getTrackbarPos('Beta', 'modify_sample') beta = cv.getTrackbarPos('Beta', 'modify_sample')
img = np.uint8(np.clip((alpha * img2 + beta), 0, 255)) img = np.uint8(np.clip((alpha * img2 + beta), 0, 255))
# 3 # 3
cv.namedWindow('modify_sample') cv.namedWindow('modify_sample')
cv.createTrackbar('Alpha', 'modify_sample', 0, 300, updateAlpha) cv.createTrackbar('Alpha', 'modify_sample', 0, 300, updateAlpha)