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laplgauss.py
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laplgauss.py
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import numpy as np
import cv2 as cv
# Canvas para a imagem
cv.namedWindow("Canvas")
canvas = np.zeros((480, 641, 3), dtype='uint8')
# Imagem de trabalho e imagem resultante
eiffel = cv.imread('eiffel.jpg')
im_result = np.zeros((eiffel.shape[0], eiffel.shape[1], 3), dtype='uint8')
# Kernels dos filtros
# Filtro da média
media = np.ones((3,3), dtype=np.float32)/9
# Filtro gaussiano
gauss = np.array([
[0.0625, 0.125, 0.0625],
[0.0625, 0.25, 0.0625],
[0.0625, 0.125, 0.0625],
], dtype=np.float32)
# Filtro detector de bordas horizontais
horizontal = np.array([
[-1, 0, 1],
[-2, 0, 2],
[-1, 0, 1]
])
# Filtro detector de bordas verticais
vertical = np.array([
[-1, -2, -1],
[0, 0, 0],
[1, 2, 1]
], dtype=np.float32)
# Filtro laplaciano
laplacian = np.array([
[0, -1, 0],
[-1, 4, -1],
[0, -1, 0]
], dtype=np.float32)
# Filtro boost
boost = np.array([
[0, -1, 0],
[-1, 5.2, -1],
[0, -1, 0]
], dtype=np.float32)
# Função para os botões
# Variável global que armazena o status do botão de mixagem com o laplaciano
status_mix = 0
# Aplica filtro laplaciano sobre outro filtro já aplicado
def mixLaplaciano(state, param):
global status_mix
status_mix = state
# Mantém imagem sem filtro
def imagemNormal(state, param):
if state == 1:
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = eiffel
cv.imshow('Canvas', canvas)
# Aplica filtro da média
def aplicaMedia(state, param):
im_result = cv.filter2D(eiffel, None, media)
if state == 1:
if status_mix == 1:
im_result = cv.filter2D(im_result, None, laplacian)
else:
pass
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = im_result
cv.imshow('Canvas', canvas)
else:
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = eiffel
cv.imshow('Canvas', canvas)
# Aplica filtro gaussiano
def aplicaGaussiano(state, param):
im_result = cv.filter2D(eiffel, None, gauss)
if state == 1:
if status_mix == 1:
im_result = cv.filter2D(im_result, None, laplacian)
else:
pass
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = im_result
cv.imshow('Canvas', canvas)
else:
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = eiffel
cv.imshow('Canvas', canvas)
# Aplica filtro detector de bordas horizontais
def aplicaHorizontal(state, param):
im_result = cv.filter2D(eiffel, None, horizontal)
if state == 1:
if status_mix == 1:
im_result = cv.filter2D(im_result, None, laplacian)
else:
pass
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = im_result
cv.imshow('Canvas', canvas)
else:
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = eiffel
cv.imshow('Canvas', canvas)
# Aplica filtro detector de bordas verticais
def aplicaVertical(state, param):
im_result = cv.filter2D(eiffel, None, vertical)
if state == 1:
if status_mix == 1:
im_result = cv.filter2D(im_result, None, laplacian)
else:
pass
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = im_result
cv.imshow('Canvas', canvas)
else:
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = eiffel
cv.imshow('Canvas', canvas)
# Aplica filtro laplaciano
def aplicaLaplaciano(state, param):
if state == 1:
im_result = cv.filter2D(eiffel, None, laplacian)
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = im_result
cv.imshow('Canvas', canvas)
else:
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = eiffel
cv.imshow('Canvas', canvas)
# Aplica filtro boost
def aplicaBoost(state, param):
im_result = cv.filter2D(eiffel, None, boost)
if state == 1:
if status_mix == 1:
im_result = cv.filter2D(im_result, None, laplacian)
else:
pass
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = im_result
cv.imshow('Canvas', canvas)
else:
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = eiffel
cv.imshow('Canvas', canvas)
cv.createButton("Normal", imagemNormal, 0, cv.QT_RADIOBOX, 1)
cv.createButton("Media", aplicaMedia, 1, cv.QT_RADIOBOX, 0)
cv.createButton("Gaussiano", aplicaGaussiano, 2, cv.QT_RADIOBOX, 0)
cv.createButton("Horizontal", aplicaHorizontal, 3, cv.QT_RADIOBOX, 0)
cv.createButton("Vertical", aplicaVertical, 4, cv.QT_RADIOBOX, 0)
cv.createButton("Laplaciano", aplicaLaplaciano, 5, cv.QT_RADIOBOX, 0)
cv.createButton("Boost", aplicaBoost, 6, cv.QT_RADIOBOX, 0)
cv.createButton("Mixar com o Laplaciano", mixLaplaciano, 1,
cv.QT_CHECKBOX, 0)
canvas[:, 0:320, :] = eiffel
canvas[:, 321:641, :] = eiffel
cv.imshow('Canvas', canvas)
cv.waitKey(0)
cv.destroyAllWindows()