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Merge pull request #254 from normen/master
Support for new Haar XML format
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commit
04f8918cec
@ -4,11 +4,54 @@ import struct
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import argparse
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from xml.dom import minidom
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def cascade_info_universal(path):
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xmldoc = minidom.parse(path)
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old_format = xmldoc.getElementsByTagName('stageNum').length == 0
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if old_format:
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print("Parsing old XML format..")
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cascade_info_old(path)
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else:
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print("Parsing new XML format..")
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cascade_info(path)
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def cascade_info(path):
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#parse xml file
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xmldoc = minidom.parse(path)
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n_stages = int(xmldoc.getElementsByTagName('stageNum')[0].childNodes[0].nodeValue)
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# read stages
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stages_elements = xmldoc.getElementsByTagName('stages')
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stages = []
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for node in stages_elements[0].childNodes:
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if node.nodeType is 1:
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stages.append(int(node.getElementsByTagName('maxWeakCount')[0].childNodes[0].nodeValue))
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stage_threshold = xmldoc.getElementsByTagName('stageThreshold')[0:n_stages]
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# total number of features
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n_features = sum(stages)
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#read rectangles
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feature = xmldoc.getElementsByTagName('rects')[0:n_features]
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#read cascade size
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size = [int(xmldoc.getElementsByTagName('width')[0].childNodes[0].nodeValue), int(xmldoc.getElementsByTagName('height')[0].childNodes[0].nodeValue)]
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n_rectangles = 0
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for f in feature:
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rects = f.getElementsByTagName('_')
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n_rectangles = n_rectangles + len(rects)
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#print some cascade info
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print("size:%dx%d"%(size[0], size[1]))
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print("stages:%d"%len(stages))
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print("features:%d"%n_features)
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print("rectangles:%d"%n_rectangles)
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def cascade_info_old(path):
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#parse xml file
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xmldoc = minidom.parse(path)
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trees = xmldoc.getElementsByTagName('trees')
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n_stages = len(trees)
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@ -29,7 +72,6 @@ def cascade_info(path):
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#read cascade size
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size = (map(int, xmldoc.getElementsByTagName('size')[0].childNodes[0].nodeValue.split()))
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fout = open(os.path.basename(path).split('.')[0]+".cascade", "w")
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n_rectangles = 0
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for f in feature:
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@ -42,10 +84,127 @@ def cascade_info(path):
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print("features:%d"%n_features)
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print("rectangles:%d"%n_rectangles)
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def cascade_binary_universal(path, n_stages, name):
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xmldoc = minidom.parse(path)
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old_format = xmldoc.getElementsByTagName('stageNum').length == 0
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if old_format:
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print("Converting old XML format..")
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cascade_binary_old(path, n_stages, name)
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else:
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print("Converting new XML format..")
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cascade_binary(path, n_stages, name)
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def cascade_binary(path, n_stages, name):
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#parse xml file
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xmldoc = minidom.parse(path)
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max_stages = int(xmldoc.getElementsByTagName('stageNum')[0].childNodes[0].nodeValue)
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if n_stages > max_stages:
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raise Exception("The max number of stages is: %d"%(max_stages))
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if n_stages == 0:
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n_stages = max_stages
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# read stages
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stages_elements = xmldoc.getElementsByTagName('stages')
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stages = []
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for node in stages_elements[0].childNodes:
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if node.nodeType is 1:
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stages.append(int(node.getElementsByTagName('maxWeakCount')[0].childNodes[0].nodeValue))
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stage_threshold = xmldoc.getElementsByTagName('stageThreshold')[0:n_stages]
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# total number of features
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n_features = sum(stages)
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# read features threshold
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internal_nodes = xmldoc.getElementsByTagName('internalNodes')[0:n_features]
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# theres one of each per feature
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leaf_values = xmldoc.getElementsByTagName('leafValues')[0:n_features]
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alpha1 = []
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alpha2 = []
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for val in leaf_values:
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alpha1.append(val.childNodes[0].nodeValue.split()[0])
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alpha2.append(val.childNodes[0].nodeValue.split()[1])
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# read rectangles
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feature = xmldoc.getElementsByTagName('rects')[0:n_features]
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# read cascade size
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size = [int(xmldoc.getElementsByTagName('width')[0].childNodes[0].nodeValue), int(xmldoc.getElementsByTagName('height')[0].childNodes[0].nodeValue)]
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# open output file with the specified name or xml file name
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if not name:
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name = os.path.basename(path).split('.')[0]
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fout = open(name+".cascade", "w")
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n_rectangles = 0
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for f in feature:
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rects = f.getElementsByTagName('_')
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n_rectangles = n_rectangles + len(rects)
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# write detection window size
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fout.write(struct.pack('i', size[0]))
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fout.write(struct.pack('i', size[1]))
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# write num stages
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fout.write(struct.pack('i', len(stages)))
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# write num feat in stages
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for s in stages:
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fout.write(struct.pack('B', s)) # uint8_t
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# write stages thresholds
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for t in stage_threshold:
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fout.write(struct.pack('h', int(float(t.childNodes[0].nodeValue)*256))) #int16_t
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# write features threshold 1 per feature
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for t in internal_nodes:
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fout.write(struct.pack('h', int(float(t.childNodes[0].nodeValue.split()[3])*4096))) #int16_t
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# write alpha1 1 per feature
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for a in alpha1:
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fout.write(struct.pack('h', int(float(a)*256))) #int16_t
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# write alpha2 1 per feature
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for a in alpha2:
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fout.write(struct.pack('h', int(float(a)*256))) #int16_t
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# write num_rects per feature
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for f in internal_nodes:
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idx = int(f.childNodes[0].nodeValue.split()[2])
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rects = feature[idx].getElementsByTagName('_')
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fout.write(struct.pack('B', len(rects))) # uint8_t
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# write rects weights 1 per rectangle
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for f in internal_nodes:
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idx = int(f.childNodes[0].nodeValue.split()[2])
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rects = feature[idx].getElementsByTagName('_')
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for r in rects:
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l = map(int, r.childNodes[0].nodeValue[:-1].split())
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fout.write(struct.pack('b', l[4])) #int8_t NOTE: multiply by 4096
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# write rects
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for f in internal_nodes:
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idx = int(f.childNodes[0].nodeValue.split()[2])
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rects = feature[idx].getElementsByTagName('_')
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for r in rects:
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l = map(int, r.childNodes[0].nodeValue[:-1].split())
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fout.write(struct.pack('BBBB',l[0], l[1], l[2], l[3])) #uint8_t
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# print cascade info
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print("size:%dx%d"%(size[0], size[1]))
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print("stages:%d"%len(stages))
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print("features:%d"%n_features)
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print("rectangles:%d"%n_rectangles)
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print("binary cascade generated")
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def cascade_binary_old(path, n_stages, name):
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#parse xml file
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xmldoc = minidom.parse(path)
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trees = xmldoc.getElementsByTagName('trees')
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max_stages = len(trees)
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if n_stages > max_stages:
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@ -242,7 +401,7 @@ def main():
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if args.info:
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# print cascade info and exit
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cascade_info(args.file)
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cascade_info_universal(args.file)
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return
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if args.header:
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@ -251,7 +410,7 @@ def main():
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return
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# generate a binary cascade from the xml cascade
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cascade_binary(args.file, args.stages, args.name)
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cascade_binary_universal(args.file, args.stages, args.name)
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if __name__ == '__main__':
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main()
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