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Lilian Besson
2017-06-07 12:28:55 +02:00
committed by GitHub
parent 27cc9f60a8
commit 21499d17f4
1 changed files with 5 additions and 5 deletions
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10
dct_better_explained.ipynb
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@@ -63,7 +63,7 @@
"img_h = 8\n",
"gray_img = img[:,:,0]\n",
"\n",
"plt.imshow(img, cmap='gray',interpolation='nearest')"
"plt.imshow(img, cmap='gray', interpolation='nearest')"
]
},
{
@@ -99,7 +99,7 @@
}
],
"source": [
"np.set_printoptions(precision=1,linewidth=140, suppress=True)\n",
"np.set_printoptions(precision=1, linewidth=140, suppress=True)\n",
"gray_img"
]
},
@@ -139,7 +139,7 @@
"# transform: 2D DCT\n",
"z_dct = fftpack.dct(fftpack.dct(gray_img.T, norm='ortho').T, norm='ortho')\n",
"\n",
"np.set_printoptions(precision=1,linewidth=140, suppress=True)\n",
"np.set_printoptions(precision=1, linewidth=140, suppress=True)\n",
"z_dct"
]
},
@@ -180,7 +180,7 @@
],
"source": [
"dct_basis = bytescale(mpimg.imread('i/dct_basis.png'))\n",
"plt.imshow(dct_basis, cmap='gray',interpolation='nearest')"
"plt.imshow(dct_basis, cmap='gray', interpolation='nearest')"
]
},
{
@@ -250,7 +250,7 @@
"for ii in range(img_h*img_h):\n",
" plt.subplot(8, 8, ii + 1)\n",
" plt.title(partial_z_dct[ii][ii / 8, ii % 8])\n",
" plt.imshow(partial_z_idct[ii], cmap='gray',interpolation='nearest')\n",
" plt.imshow(partial_z_idct[ii], cmap='gray', interpolation='nearest')\n",
" plt.grid(False);\n",
" plt.xticks([]);\n",
" plt.yticks([]);"