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Small improvements #3

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859bc90
Fix find_countours for modern OPENCV
nagayev Oct 5, 2022
6a74e0d
Add instructions how to install dependency
nagayev Oct 5, 2022
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6 changes: 6 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
@@ -1,5 +1,11 @@
# Opencv Tutorial

## Install

`pip install opencv-python`

## Articles

I highly recommend to see my articles for better understanding:

Part_1: https://habr.com/ru/post/519454/
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4 changes: 2 additions & 2 deletions part_4.py
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Expand Up @@ -25,7 +25,7 @@ def find_features(img1):
def find_contours_of_cards(image):
blurred = cv2.GaussianBlur(image, (3, 3), 0)
T, thresh_img = cv2.threshold(blurred, 215, 255, cv2.THRESH_BINARY)
(_, cnts, _) = cv2.findContours(thresh_img, cv2.RETR_EXTERNAL,
(cnts, _) = cv2.findContours(thresh_img, cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
return cnts

Expand Down Expand Up @@ -54,4 +54,4 @@ def draw_rectangle_aroud_cards(cards_coordinates, image):
gray_main_image = cv2.cvtColor(main_image, cv2.COLOR_BGR2GRAY)
contours = find_contours_of_cards(gray_main_image)
cards_location = find_coordinates_of_cards(contours, gray_main_image)
draw_rectangle_aroud_cards(cards_location, main_image)
draw_rectangle_aroud_cards(cards_location, main_image)
1 change: 1 addition & 0 deletions requirements.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
opencv-python>=4.0