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Author SHA1 Message Date
3d071bae42 Merge pull request 'files_organisation' (#5) from files_organisation into master
Reviewed-on: #5
2022-11-09 08:47:55 +01:00
fc6ed23f4c
deleting __pycache__ 2022-11-08 22:36:41 +01:00
3810e0bc88 modif .gitignore 2022-11-08 22:25:00 +01:00
450908c2b8 Update
Signed-off-by: Andy K <donfackandy@gmail.com>
2022-11-08 22:20:56 +01:00
34cc884c5d Re-add .gitignore
Signed-off-by: Andy K <donfackandy@gmail.com>
2022-11-08 22:03:21 +01:00
346dff092d Update
Signed-off-by: Andy K <donfackandy@gmail.com>
2022-11-08 21:48:36 +01:00
8e5d626074 Réorganisation des fichiers et des fonctions
Ajout de 'main.py'
    Ajout de :
        filters\
                \sobel.py
                \canny.py
                \usefull_func.py
    All pictures in 'images\' directory had been renamed
2022-11-08 21:27:09 +01:00
86 changed files with 165 additions and 297 deletions

4
.gitignore vendored Normal file
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.vscode/
imageEngine/images/
imageEngine/test/
imageEngine/__pycache__/

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{
"python.analysis.typeCheckingMode": "basic"
}

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from usefull_func import *
from math import sqrt, atan2
#En_cours...
def filtre_canny(img):
def norme_gradient(pixel1, pixel2):
color_x = pixel1[0]
color_y = pixel2[0]
norm = round(sqrt(color_x**2 + color_y**2))
norm = min(norm, 255)
grad = atan2(color_y, color_x)
return norm, grad
def liste_normGrad(im1, im2):
liste = []
for j in range(len(im1)):
ligne = []
for i in range(len(im1[0])):
normGrad = norme_gradient(im1[j][i], im2[j][i])
ligne.append(normGrad)
liste.append(ligne)
return liste
if not is_greyscale(img):
img = greyscale(img)
mat_x = [[-1,0,1]]
mat_y = [[1],[0],[-1]]
#lissage/suppression des bri
img_no_bruit = convolution_gauss(img)
Jx = convolution(img, mat_x)
Jy = convolution(img, mat_y)
normGrad = liste_normGrad(Jx, Jy)
#Suppresion des non-maximum

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from usefull_func import *
def filtre_sobel(img):
if not is_greyscale(img):
img = greyscale(img)
mat_x = [[-1,0,1],[-2,0,2],[-1,0,1]]
mat_y = [[-1,-2,-1],[0,0,0],[1,2,1]]
Gx = convolution(img, mat_x)
Gy = convolution(img, mat_y)
filtred_image = application_norme(Gx,Gy)
return filtred_image

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from math import sqrt
def greyscale(mat_img):
gray_img = []
for ligne in mat_img:
lig = []
for r,g,b in ligne:
v = int(r*0.2125 + g*0.7154 + b*0.0721)
lig.append((v,)*3)
gray_img.append(lig)
return gray_img
def appliquer_convolution(img, mat, i, j):
somme = 0
for y in range(len(mat)):
for x in range(len(mat[0])):
pixel_i = i - (len(mat[0]) // 2) + x
pixel_j = j - (len(mat) // 2) + y
pix = pixel(img, pixel_i, pixel_j)
somme += pix[0]*mat[y][x]
return min(max(somme,0), 255)
def convolution(mat_img, mat):
return_img = []
for j in range(len(mat_img)):
ligne = []
for i in range(len(mat_img[0])):
val = appliquer_convolution(mat_img, mat, i, j)
ligne.append((val,)*3)
return_img.append(ligne)
return return_img
def is_greyscale(img):
_greyscale = True
for ligne in img:
for r,g,b in ligne:
if not (r==g and g==b):
_greyscale = False
break
if not _greyscale:
break
return _greyscale
def invert(img):
result_image = []
for ligne in img:
result_ligne = []
for r,g,b in ligne:
result_ligne.append((255-r, 255-g, 255-b))
result_image.append(result_ligne)
return result_image
def pixel(img, i, j, default=(0,0,0)):
#i la colone et j la ligne
if 0 <= i < len(img[0]) and 0 <= j < len(img):
return img[j][i]
else:
return default
def reduction_bruit(img, mat, i, j):
somme = 0
for y in range(len(mat)):
for x in range(len(mat[0])):
pixel_i = i - (len(mat[0]) // 2) + x
pixel_j = j - (len(mat) // 2) + y
pix = pixel(img, pixel_i, pixel_j)
somme += pix[0]*mat[y][x]
normalise = round(somme)
return normalise
def convolution_gauss(mat_img):
mat_gauss = [
[2/159, 4/159, 5/159, 4/159,2/159],
[4/159, 9/159,12/159, 9/159,4/159],
[5/159,12/159,15/159,12/159,5/159],
[4/159, 9/159,12/159, 9/159,4/159],
[2/159, 4/159, 5/159, 4/159,2/159]
]
return_img = []
for j in range(len(mat_img)):
ligne = []
for i in range(len(mat_img[0])):
val = reduction_bruit(mat_img, mat_gauss, i, j)
ligne.append((val,)*3)
return_img.append(ligne)
return return_img
def calcul_norme(pixel1, pixel2):
valeur = pixel1[0]**2 + pixel2[0]**2
norm = round(sqrt(valeur))
norm = int(min(norm, 255))
return norm
def application_norme(im_x, im_y):
result_image = []
for j in range(len(im_x)):
ligne = []
for i in range(len(im_x[0])):
pixel1 = im_x[j][i]
pixel2 = im_y[j][i]
norme = calcul_norme(pixel1, pixel2)
ligne.append((norme,)*3)
result_image.append(ligne)
return result_image

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imageEngine/main.py Normal file
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import umage as um
from math import sqrt, atan2, sin, cos, pi
def greyscale(mat_img):
gray_img = []
for ligne in mat_img:
lig = []
for r,g,b in ligne:
v = int(r*0.2125 + g*0.7154 + b*0.0721)
lig.append((v,)*3)
gray_img.append(lig)
return gray_img
def convolution(mat_img, mat):
return_img = []
for j in range(len(mat_img)):
ligne = []
for i in range(len(mat_img[0])):
val = appliquer_convolution(mat_img, mat, i, j)
ligne.append((val,)*3)
return_img.append(ligne)
return return_img
def filtre_sobel(img):
def calcul_norme(pixel1, pixel2):
valeur = pixel1[0]**2 + pixel2[0]**2
norm = round(sqrt(valeur))
norm = int(min(norm, 255))
return norm
def application_norme(im_x, im_y):
result_image = []
for j in range(len(im_x)):
ligne = []
for i in range(len(im_x[0])):
pixel1 = im_x[j][i]
pixel2 = im_y[j][i]
norme = calcul_norme(pixel1, pixel2)
ligne.append((norme,)*3)
result_image.append(ligne)
return result_image
if not is_greyscale(img):
img = greyscale(img)
mat_x = [[-1,0,1],[-2,0,2],[-1,0,1]]
mat_y = [[-1,-2,-1],[0,0,0],[1,2,1]]
Gx = convolution(img, mat_x)
Gy = convolution(img, mat_y)
filtred_image = application_norme(Gx,Gy)
return filtred_image
#########################################################################
########################Exercices Supplémentaires########################
#########################################################################
def is_greyscale(img):
_greyscale = True
for ligne in img:
for r,g,b in ligne:
if not (r==g and g==b):
_greyscale = False
break
if not _greyscale:
break
return _greyscale
def invert(img):
result_image = []
for ligne in img:
result_ligne = []
for r,g,b in ligne:
result_ligne.append((255-r, 255-g, 255-b))
result_image.append(result_ligne)
return result_image
def pixel(img, i, j, default=(0,0,0)):
#i la colone et j la ligne
if 0 <= i < len(img[0]) and 0 <= j < len(img):
return img[j][i]
else:
return default
def appliquer_convolution(img, mat, i, j):
somme = 0
for y in range(len(mat)):
for x in range(len(mat[0])):
pixel_i = i - (len(mat[0]) // 2) + x
pixel_j = j - (len(mat) // 2) + y
pix = pixel(img, pixel_i, pixel_j)
somme += pix[0]*mat[y][x]
return min(max(somme,0), 255)
######################################################################
########################Exercices personnelles########################
######################################################################
def convolution_gauss(mat_img):
mat_gauss = [
[2/159, 4/159, 5/159, 4/159,2/159],
[4/159, 9/159,12/159, 9/159,4/159],
[5/159,12/159,15/159,12/159,5/159],
[4/159, 9/159,12/159, 9/159,4/159],
[2/159, 4/159, 5/159, 4/159,2/159]
]
return_img = []
for j in range(len(mat_img)):
ligne = []
for i in range(len(mat_img[0])):
val = reduction_bruit(mat_img, mat_gauss, i, j)
ligne.append((val,)*3)
return_img.append(ligne)
return return_img
def reduction_bruit(img, mat, i, j):
somme = 0
for y in range(len(mat)):
for x in range(len(mat[0])):
pixel_i = i - (len(mat[0]) // 2) + x
pixel_j = j - (len(mat) // 2) + y
pix = pixel(img, pixel_i, pixel_j)
somme += pix[0]*mat[y][x]
normalise = round(somme)
return normalise
def filtre_canny(img):
def norme_gradient(pixel1, pixel2):
color_x = pixel1[0]
color_y = pixel2[0]
norm = round(sqrt(color_x**2 + color_y**2))
norm = min(norm, 255)
grad = atan2(color_y, color_x)
return norm, grad
def liste_normGrad(im1, im2):
liste = []
for j in range(len(im1)):
ligne = []
for i in range(len(im1[0])):
normGrad = norme_gradient(im1[j][i], im2[j][i])
ligne.append(normGrad)
liste.append(ligne)
return liste
if not is_greyscale(img):
img = greyscale(img)
mat_x = [[-1,0,1]]
mat_y = [[1],[0],[-1]]
#lissage/suppression des bri
img_no_bruit = convolution_gauss(img)
Jx = convolution(img, mat_x)
Jy = convolution(img, mat_y)
normGrad = liste_normGrad(Jx, Jy)
#Suppresion des non-maximum
#temp
def norme_gradient(pixel1, pixel2):
color_x = pixel1[0]
color_y = pixel2[0]
norm = round(sqrt(color_x**2 + color_y**2))
norm = min(norm, 255)
grad = atan2(color_y, color_x)
return norm, grad
#temp
def liste_normGrad(im1, im2):
liste = []
for j in range(len(im1)):
ligne = []
for i in range(len(im1[0])):
normGrad = norme_gradient(im1[j][i], im2[j][i])
ligne.append(normGrad)
liste.append(ligne)
return liste
mat_x = [[-1,0,1]]
mat_y = [[1],[0],[-1]]
#temp
#lissage
img = um.load("imageEngine\\images\\valve.png")
img = convolution_gauss(img)
Jx = convolution(img, mat_x)
Jy = convolution(img, mat_y)
normGrad = liste_normGrad(Jx, Jy)
###########
def find_neighbord_norm(mat, i, j, rad):
x = 0
y = 0
if sin(pi/8) <= abs(sin(rad)):
y = 1
if cos(3*pi/8)>abs(cos(rad)):
x = 1
norm_pix1 = -1
norm_pix2 = -1
if 0 <= j-y < len(mat):
if 0 <= i-x < len(mat[0]):
norm_pix1 = mat[j-y][i-x][0]
if 0 <= j+y < len(mat):
if 0 <= i+x < len(mat[0]):
norm_pix2 = mat[j+y][i+x][0]
return norm_pix1, norm_pix2
def delete_pixel(mat_img, mat):
img_to_return = []
for j in range(len(mat)):
ligne = []
for i in range(len(mat[0])):
rad = mat[j][i][1]
norms = find_neighbord_norm(mat, i, j, rad)
if rad < norms[0] or rad < norms[1]:
ligne.append((0,)*3)
else:
ligne.append(mat_img[j][i])
img_to_return.append(ligne)
return img_to_return
"""
def hysteresis(mat_img, mat_norm, Th):
Tl = Th / 2
mat_img = yesOrNo(mat_img, Th, Tl)
result_image = []
for j in range(len(mat_img)):
ligne = []
for i in range(len(mat_img[0])):
rad = mat_norm[j][i][1]
color1, color2 = find_neighbord_pixel(mat_img, i, j, rad+(pi/2))
if color1 == 255 or color2 == 255:
ligne.append((255,)*3)
else:
ligne.append((0,)*3)
result_image.append(ligne)
return result_image
def find_neighbord_pixel(mat_image, i, j, rad):
x = 0
y = 0
if sin(pi/8) <= abs(sin(rad)):
y = 1
if cos(3*pi/8)>abs(cos(rad)):
x = 1
color_pix1 = 0
color_pix2 = 0
if 0 <= j-y < len(mat_image):
if 0 <= i-x < len(mat_image[0]):
color_pix1 = mat_image[j-y][i-x][0]
if 0 <= j+y < len(mat_image):
if 0 <= i+x < len(mat_image[0]):
color_pix2 = mat_image[j+y][i+x][0]
return color_pix1, color_pix2
def yesOrNo(mat_img, Th, Tl):
result_image = []
for j in range(len(mat_img)):
ligne = []
for i in range(len(mat_img[0])):
pix = mat_img[j][i]
if Th <= pix[0]:
ligne.append((255,)*3)
elif pix[0] < Tl:
ligne.append((0,)*3)
else:
ligne.append(pix)
result_image.append(ligne)
return result_image
zt_no_maxima = delete_pixel(img, normGrad)
zt_hysteresis = hysteresis(zt_no_maxima, normGrad, 200)
um.save(zt_hysteresis, "imageEngine\\test\\valve", "png")
"""

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