-
-
Save parzibyte/80279da6c376a96daac952fcfd13a649 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
""" | |
https://parzibyte.me/blog | |
""" | |
import numpy as np | |
import imageio | |
NOMBRE_IMAGEN = "travel.bmp" | |
def leer_imagen(ruta): | |
return np.array(imageio.imread(ruta), dtype='int').tolist() | |
def guardar_imagen(ruta, matriz): | |
return imageio.imwrite(ruta, np.array(matriz, dtype="uint8")) | |
def sepia(nombre_imagen): | |
matriz = leer_imagen(nombre_imagen) | |
ancho = len(matriz[0]) | |
alto = len(matriz) | |
for y in range(alto): | |
for x in range(ancho): | |
pixel = matriz[y][x] | |
original_rojo = pixel[0] | |
original_verde = pixel[1] | |
original_azul = pixel[2] | |
sepia_rojo = round(0.393*original_rojo + | |
0.769*original_verde+0.189*original_azul) | |
sepia_verde = round(0.349*original_rojo + | |
0.686*original_verde+0.168*original_azul) | |
sepia_azul = round(0.272*original_rojo + | |
0.534*original_verde+0.131*original_azul) | |
pixel_sepia = [sepia_rojo, sepia_verde, sepia_azul] | |
for indice in range(len(pixel_sepia)): | |
if pixel_sepia[indice] < 0: | |
pixel_sepia[indice] = 0 | |
elif pixel_sepia[indice] > 255: | |
pixel_sepia[indice] = 255 | |
matriz[y][x] = pixel_sepia | |
return matriz | |
guardar_imagen("travel_sepia.bmp", sepia(NOMBRE_IMAGEN)) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment