rename pascal voc writer

pascal_voc_writer.py

@@ -0,0 +1,110 @@
+import sys
+from xml.etree import ElementTree
+from xml.etree.ElementTree import Element, SubElement
+from xml.dom import minidom
+from lxml import etree
+
+class PascalVocWriter:
+    def __init__(self, foldername, filename, imgSize, databaseSrc='Unknown', localImgPath=None):
+        self.foldername = foldername
+        self.filename = filename
+        self.databaseSrc = databaseSrc
+        self.imgSize = imgSize
+        self.boxlist = []
+        self.localImgPath = localImgPath
+
+    def prettify(self, elem):
+        """
+            Return a pretty-printed XML string for the Element.
+        """
+        rough_string = ElementTree.tostring(elem,'utf8')
+        reparsed = minidom.parseString(rough_string)
+        return reparsed.toprettyxml(indent="\t")
+
+    def genXML(self):
+        """
+            Return XML root
+        """
+        # Check conditions
+        if self.filename is None or \
+                self.foldername is None or \
+                self.imgSize is None or \
+                len(self.boxlist) <= 0:
+                    return None
+
+        top = Element('annotation')
+        folder = SubElement(top,'folder')
+        folder.text = self.foldername
+
+        filename = SubElement(top,'filename')
+        filename.text = self.filename
+
+        localImgPath = SubElement(top,'path')
+        localImgPath.text = self.localImgPath
+
+        source = SubElement(top,'source')
+        database = SubElement(source,'database')
+        database.text = self.databaseSrc
+
+        size_part = SubElement(top,'size')
+        width = SubElement(size_part,'width')
+        height = SubElement(size_part,'height')
+        depth = SubElement(size_part,'depth')
+        width.text = str(self.imgSize[1])
+        height.text = str(self.imgSize[0])
+        if len(self.imgSize)==3:
+            depth.text = str(self.imgSize[2])
+        else:
+            depth.text = '1'
+
+        segmented = SubElement(top,'segmented')
+        segmented.text ='0'
+
+        return top
+
+    def addBndBox(self, xmin, ymin, xmax, ymax, name):
+        bndbox = {'xmin':xmin, 'ymin':ymin, 'xmax':xmax, 'ymax':ymax}
+        bndbox['name'] = name
+        self.boxlist.append(bndbox);
+
+    def appendObjects(self, top):
+        for each_object in self.boxlist:
+            object_item = SubElement(top,'object')
+            name = SubElement(object_item, 'name')
+            name.text = str(each_object['name'])
+            pose = SubElement(object_item, 'pose')
+            pose.text = "Unspecified"
+            truncated = SubElement(object_item, 'truncated')
+            truncated.text = "0"
+            difficult = SubElement(object_item, 'difficult')
+            difficult.text = "0"
+            bndbox = SubElement(object_item, 'bndbox')
+            xmin = SubElement(bndbox, 'xmin')
+            xmin.text = str(each_object['xmin'])
+            ymin = SubElement(bndbox, 'ymin')
+            ymin.text = str(each_object['ymin'])
+            xmax = SubElement(bndbox, 'xmax')
+            xmax.text = str(each_object['xmax'])
+            ymax = SubElement(bndbox, 'ymax')
+            ymax.text = str(each_object['ymax'])
+
+    def save(self, targetFile = None):
+        root = self.genXML()
+        self.appendObjects(root)
+        out_file = None
+        if targetFile is None:
+            out_file = open(self.filename + '.xml','w')
+        else:
+            out_file = open(targetFile, 'w')
+
+        out_file.write(self.prettify(root))
+        out_file.close()
+
+"""
+# Test
+tmp = PascalVocWriter('temp','test', (10,20,3))
+tmp.addBndBox(10,10,20,30,'chair')
+tmp.addBndBox(1,1,600,600,'car')
+tmp.save()
+"""
+