小编Joh*_*Doe的帖子

我想知道是否可以通过修改其 RGB、HSV（或类似）值来修改图像的对比度。

我目前正在做以下事情来处理亮度、饱和度和色调（在 python 中）：

import numpy as np
from PIL import Image as img
import colorsys as cs

#Fix colorsys rgb_to_hsv function
#cs.rgb_to_hsv only works on arrays of shape: [112, 112,255] and non n-dimensional arrays
rgb_to_hsv = np.vectorize(cs.rgb_to_hsv)
hsv_to_rgb = np.vectorize(cs.hsv_to_rgb)

def luminance_edit(a, h, s, new_v):
    #Edits V - Luminance

    #Changes RGB based on new luminance value
    r, g, b = hsv_to_rgb(h, s, new_v)

    #Merges R,G,B,A values to form new array
    arr = np.dstack((r, g, b, a))

    return arr …