Initial commit

dataset/generate_list_cedar.py

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+"""
+@file: generate_list_cedar.py
+@time: 2018/6/20 15:03
+@desc:Create the paris list of CEDAR Database
+
+"""
+
+import copy
+import os
+import sys
+
+import imageio
+import numpy as np
+
+num_genuine = 24
+num_forged = 24
+
+
+# 生成数组l的全部组合（长度k）
+def combine(l, k):
+    answers = []
+    one = [0] * k
+
+    def next_c(li=0, ni=0):
+        if ni == k:
+            answers.append(copy.copy(one))
+            return
+        for lj in range(li, len(l)):
+            one[ni] = l[lj]
+            next_c(lj + 1, ni + 1)
+
+    next_c()
+    return answers
+
+
+# 生成两个数组间的全部组合
+def combine_2list(list1, list2):
+    answers = []
+    for i1 in list1:
+        for i2 in list2:
+            answers.append([i1, i2])
+    return answers
+
+
+def generate_list(train_size, listfile_name):
+    signers_list = list(range(1, 56))
+    list_file_train = open(listfile_name + '_train.txt', 'w')
+    list_file_test = open(listfile_name + '_val.txt', 'w')
+
+    train_indexs = np.arange(0, len(signers_list), 1)
+    np.random.shuffle(train_indexs)
+    train_indexs = train_indexs[:train_size]
+
+    for i, signer in enumerate(signers_list):
+        list_file = list_file_train if i in train_indexs else list_file_test
+        genuine_genuine_suf = combine(list(range(1, num_genuine + 1)), 2)
+        for item in genuine_genuine_suf:
+            genuine0 = "%s%d_%d%s" % ('full_org/original_', int(signer), item[0], '.png')
+            genuine1 = "%s%d_%d%s" % ('full_org/original_', int(signer), item[1], '.png')
+            line = genuine0 + ' ' + genuine1 + ' 1\n'
+            list_file.write(line)
+
+        genuine_forged_suf = combine_2list(list(range(1, num_genuine + 1)), list(range(1, num_forged + 1)))
+        for item in genuine_forged_suf:
+            genuine = "%s%d_%d%s" % ('full_org/original_', int(signer), item[0], '.png')
+            forged = "%s%d_%d%s" % ('full_forg/forgeries_', int(signer), item[1], '.png')
+            line = genuine + ' ' + forged + ' 0\n'
+            list_file.write(line)
+
+    list_file_train.close()
+    list_file_test.close()
+
+
+def tif_to_jpg(tif_dir, jpg_dir):
+    for root, dirs, files in os.walk(tif_dir):
+        to_dir = root.replace(tif_dir, jpg_dir)
+        if not os.path.exists(to_dir):
+            os.mkdir(to_dir)
+        for file in files:
+            if not file.endswith('.tif'):
+                continue
+            image = imageio.imread(os.path.join(root, file))
+            jpg_file = file.replace('.tif', '.jpg')
+            imageio.imwrite(os.path.join(to_dir, jpg_file), image)
+
+
+def main(argv=None):
+    if argv is None:
+        argv = sys.argv
+
+    generate_list(50, '../experiments/data_list/cedar')
+    # generate_list(100, '../experiments/data_list/bhsig260_Hindi')
+
+
+if __name__ == "__main__":
+    sys.exit(main())