Benjamin_Loison/Robust_image_source_identification_on_modern_smartphones
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Add 1 to np.log10 argument

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This commit is contained in:
Benjamin Loison 2024-05-22 16:43:17 +02:00
parent 4d9e8bead1
commit 7a002f8b0d
Signed by: Benjamin_Loison
SSH Key Fingerprint: SHA256:BtnEgYTlHdOg1u+RmYcDE0mnfz1rhv5dSbQ2gyxW8B8
2 changed files with 4 additions and 4 deletions
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2
datasets/raise/fft/image_to_fourier.py
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@ -9,7 +9,7 @@ image = np.array(Image.open('circle.png').convert('L'))# / 255
fft1 = fftpack.fftshift(fftpack.fft2(image))
# save the image
toDisplay = np.log10(abs(fft1))
toDisplay = np.log10(1 + abs(fft1))
plt.imshow(toDisplay)
plt.show()
plt.imsave('ifft1.png', toDisplay)

6
datasets/raise/fft/remove_period_patterns.py
View File

@ -61,8 +61,8 @@ plt.suptitle('Attenuating FFT significant lines')
axes[0].set_title('Original FFT')
#originalFft1Abs = abs(originalFft1)
#minValue = np.min()
firstImage = np.log10(abs(originalFft1))
secondImage = np.log10(abs(fixedImage))
firstImage = np.log10(1 + abs(originalFft1))
secondImage = np.log10(1 + abs(fixedImage))
images = [firstImage, secondImage]
vMin = np.min(images)
vMax = np.max(images)
@ -71,7 +71,7 @@ axes[1].set_title('FFT with significant lines attenuated')
axes[1].imshow(secondImage, vmin = vMin, vmax = vMax)
plt.tight_layout()
plt.show()
#plt.imsave('fft.png', np.log10(fixedImage))
#plt.imsave('fft.png', np.log10(1 + fixedImage))
figure, axes = plt.subplots(1, 2, sharex = True, sharey = True)