用途
在图像处理中，伪色彩用途广泛。在OpenCV库中，常见的伪色彩模式都可通过 cv2.applyColorMap(src, userColor[, dst]) 直接调用，很是方便快捷。例如伪色彩中的 COLORMAP_JET模式，就常被用于生成我们所常见的 热力图：
Syntax
代码语言：javascript复制cv2.applyColorMap(src, userColor[, dst])Args:
- COLORMAP_AUTUMN = 0
- COLORMAP_BONE = 1
- COLORMAP_JET = 2
- COLORMAP_WINTER = 3
- COLORMAP_RAINBOW = 4
- COLORMAP_OCEAN = 5
- COLORMAP_SUMMER = 6
- COLORMAP_SPRING = 7
- COLORMAP_COOL = 8
- COLORMAP_HSV = 9
- COLORMAP_PINK = 10
- COLORMAP_HOT = 11
Demo 原图：
伪色彩图：
COLORMAP_AUTUMN = 0：
COLORMAP_BONE = 1：
COLORMAP_JET = 2：
COLORMAP_WINTER = 3：
COLORMAP_RAINBOW = 4：
COLORMAP_OCEAN = 5：
COLORMAP_SUMMER = 6：
COLORMAP_SPRING = 7：
COLORMAP_COOL = 8：
COLORMAP_HSV = 9：
COLORMAP_PINK = 10：
COLORMAP_HOT = 11：
12：
Code
附上自己写的实验代码：
代码语言：javascript复制import cv2
# COLORMAP_AUTUMN = 0,
# COLORMAP_BONE = 1,
# COLORMAP_JET = 2,
# COLORMAP_WINTER = 3,
# COLORMAP_RAINBOW = 4,
# COLORMAP_OCEAN = 5,
# COLORMAP_SUMMER = 6,
# COLORMAP_SPRING = 7,
# COLORMAP_COOL = 8,
# COLORMAP_HSV = 9,
# COLORMAP_PINK = 10,
# COLORMAP_HOT = 11
img = cv2.imread("girl.jpg")
for i in range(0, 13):
im_color = cv2.applyColorMap(img, i)
cv2.imwrite("{}.jpg".format(i), im_color)
