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Python: Want to edit image like adobe Photoshop

I would like to decrease brightness, contrast, and offset of the image in Python like photoshop. I enhance the bar code in that image. I want to make that barcode visible by editing that image.

enter image description here

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  1. Chosen as BEST ANSWER
    0 
    import colorsys

def colorize(im, h, s, l_adjust):
    h /= 360.0
    s /= 100.0
    l_adjust /= 100.0
    if im.mode != 'L':
        im = im.convert('L')
    result = Image.new('RGB', im.size)
    pixin = im.load()
    pixout = result.load()
    for y in range(im.size[1]):
        for x in range(im.size[0]):
            l = pixin[x, y] / 255.99
            l += l_adjust
            l = min(max(l, 0.0), 1.0)
            r, g, b = colorsys.hls_to_rgb(h, l, s)
            r, g, b = int(r * 255.99), int(g * 255.99), int(b * 255.99)
            pixout[x, y] = (r, g, b)
    return result```

  2. 0

    You can use histogram equalisation:

    import cv2

# Load image as greyscale
im = cv2.imread('XD04u.png', cv2.IMREAD_GRAYSCALE)

# Equalise and save
res = cv2.equalizeHist(im)
cv2.imwrite('result.png', res)

    enter image description here

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