Videoma’lumotlarga raqamli ishlov berish

VIDEOMA’LUMOTLARGA RAQAMLI ISHLOV BERISH

Begmatov Shoxrux, PhD

Toshkent 2023

2. Kadrdagi piksellar qiymatini aniqlash
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Rasmlarni kichiklashtirish natijalari

444x444
24x24
12x12
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Dastur kodi

import cv2 from matplotlib import pyplot as plt img = cv2.imread("imgs/amir temur.jpg") img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) img = cv2.resize(img, (12,12)) fig, ax = plt.subplots(figsize=(10, 10)) ax.imshow(img) ax.axis('off') plt.show()
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cv2.imread("../input/test-imgs/amir temur.jpg")

Qo’llanilgan funksiyalar

cv2.imread([add],[kod]) - Bu funksiya ikkita argument qabul qiladi. Birinchisi argument ‘add’ rasmning addresi. Rasm ishchi addresda bo’lishi yoki rasmning to’liq addresi ko’rsatilishi zarur.

Ikkinchi argument ‘kod’ rasmni o’qish rejimi bayrog’i. U uch xil bo’lishi mumkin:

cv2.IMREAD_COLOR: rangli o’qish rejmi. Alfa kanal inkor qilinadi.

cv2.IMREAD_GRAYSCALE : oq-qora rejimda o’qish

cv2.IMREAD_UNCHANGED: o’zgartirishsiz o’qish. Alfa kanal ham o’qiladi.

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Qo’llanilgan funksiyalar

cv2.cvtColor([img],[kod]) funskiyasi yordamida chiziq chizish mumkin. Funksiya quyidagi parametrlarni qabul qiladi:

img – kiruvchi rasm nomi;

kod- rasmni o’zgartirish rejimi raqami;

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Dastur natijasi

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Topshiriq

• O’zingizni yirik o’lchamda rasmga oling va yuqorida ko’rsatilgan dastur yordamida 12x12 o’lchamga o’tkazib oling.
• Xar bir piksel ranglarni RGB kanallari bo’yicha qiymatlarni aniqlang quyidagi namunadagi kabi natijaga olib keling.

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E’TIBORINGIZ UCHUN RAHMAT