Why doesn't splitting by HSV and then merging into BGR produce the same result?

Ecoste
6 ●1

Just the frame looks like: image description

 h, s, v = cv2.split(frame)
 frame = cv2.merge([h, s, v])
 frame = cv2.cvtColor(frame, cv2.COLOR_HSV2BGR)

However when you split by hsv and then merge it back it looks like:

image description

Why? Shouldn't they be the same?

1 answer

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berak
32993 ●7 ●81 ●312

i might be missing something, but it looks like your 1st line of code:

h, s, v = cv2.split(frame)

is just "whishful thinking"

it only would be HSV IF you had a corresponding:

 hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
 h, s, v = cv2.split(hsv) # NOT frame, here, which is still BGR, not HSV

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Asked: 2018-09-24 11:59:21 -0600

Seen: 1,236 times

Last updated: Sep 24 '18