From cbf8a2a65928694202e19b6bcf56ec84bcbf613c Mon Sep 17 00:00:00 2001
From: jvoisin
Date: Sat, 8 Dec 2012 02:02:25 +0100
Subject: Reorganize source tree and files installation location, cleanup
 setup.py (Closes: #689409)

---
 MAT/images.py | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 MAT/images.py

(limited to 'MAT/images.py')

diff --git a/MAT/images.py b/MAT/images.py
new file mode 100644
index 0000000..236d566
--- /dev/null
+++ b/MAT/images.py
@@ -0,0 +1,41 @@
+'''
+    Takes care about pictures formats
+'''
+
+import parser
+
+
+class JpegStripper(parser.GenericParser):
+    '''
+        represents a jpeg file
+    '''
+    def _should_remove(self, field):
+        '''
+            return True if the field is compromizing
+        '''
+        field_list = frozenset(['start_image', 'app0', 'start_frame',
+                'start_scan', 'data', 'end_image'])
+        if field.name in field_list:
+            return False
+        elif field.name.startswith('quantization['):
+            return False
+        elif field.name.startswith('huffman['):
+            return False
+        return True
+
+
+class PngStripper(parser.GenericParser):
+    '''
+        represents a png file
+        see : http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/PNG.html
+    '''
+    def _should_remove(self, field):
+        '''
+            return True if the field is compromizing
+        '''
+        field_list = frozenset(['id', 'header', 'physical', 'end'])
+        if field.name in field_list:
+            return False
+        if field.name.startswith('data['):
+            return False
+        return True
-- 
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