def compare_screenshots_sift_ext2(orig_link_path, wayback_link_path, ocr_flag, psnr_flag):
# create screenshot from Wayback using timestamp
print "\noriginal link: ", orig_link_path, ", wayback link: ", wayback_link_path, ", ocr flag: ", ocr_flag, ", psnr flag: ", psnr_flag
import datetime
current_file_id = timeit.default_timer()
# create image from original link
orig_img_name = 'qa/orig/' + str(current_file_id) + '.png'
# create image from Wayback link
wayback_img_name = 'wayback.png'
try:
# Set the timer for five seconds for file creation due to programm hanging
# if file could not be created from the link by internet
t = Timer(FILE_CREATION_TIME, create_file(orig_link_path, orig_img_name))
t.start()
tw = Timer(FILE_CREATION_TIME, create_file(wayback_link_path, wayback_img_name))
tw.start()
if os.path.exists(orig_img_name):
start = timeit.default_timer()
# compare two images
img1 = cv2.imread(orig_img_name, 0)
img1_size = os.path.getsize(orig_img_name)
img2 = cv2.imread(wayback_img_name, 0)
img2_size = os.path.getsize(wayback_img_name)
print "extract features ..."
fc1, fc2, mc, msg = compare_screenshots.compare_ext(img1, img2, 'sift', ts1, ts2)
ocr = 0
if str2bool(ocr_flag):
# calculate OCR value from original image
print "perform OCR analysis ..."
ocr = blank.ocr(orig_img_name)
psnr_similarity = "None"
psnr_threshold = ts_psnr
psnr_msg = ""
if str2bool(psnr_flag):
# compare images using imagemagick tool and PSNR metric
print "perform PSNR analysis ..."
psnr_similarity = "DIFFERENT"
psnr_similarity, psnr_threshold, psnr_msg = compare_psnr(orig_img_name, wayback_img_name)
# remove temporary images
os.remove(wayback_img_name)
execution_time = timeit.default_timer() - start
print "execution time: ", execution_time
# store in CSV and MongoDB resulting timstamp in ms, execution time in sec,
# original URL, wayback machine URL, wayback timestamp, SIFT features total count,
# matched features count, resulting message, OCR count, file sizes, PSNR value
# and original file
wayback_url_list = wayback_link_path.split("/")
wayback_timestamp = wayback_url_list[-2]
print "wayback timestamp: ", wayback_timestamp
import datetime
current_time = datetime.datetime.utcnow()
orig_img_name = 'http://127.0.0.1:8000/' + orig_img_name
#print "original link: ", orig_link
store_in_file(current_time, execution_time, orig_link_path, wayback_link_path, wayback_timestamp, fc1, fc2, mc, msg, ocr, img1_size, img2_size, psnr_similarity, psnr_threshold, psnr_msg, orig_img_name)
insert_mongo(current_time, execution_time, orig_link_path, wayback_link_path, wayback_timestamp, fc1, fc2, mc, msg, ocr, img1_size, img2_size, psnr_similarity, psnr_threshold, psnr_msg, orig_img_name)
return mc, fc1, ocr, psnr_similarity
else:
print "Warning: original file could not be retrieved from internet!"
except Exception, e:
print "Error:", e, " Please check if Wayback machine and MongoDB are running!"
def compare_images_by_path_and_link_ext(orig_link_path, wayback_link_name, ocr_flag, ts1=60, ts2=30, psnr_flag=False, psnr_th=None):
# create screenshot from Wayback using timestamp
print "\noriginal link: ", orig_link_path, ", wayback link: ", wayback_link_name, ", ocr flag: ", ocr_flag, ", high ts1: ", ts1, ", low ts2: ", ts2
# create screenshot from Wayback using timestamp
wayback_link = urllib.unquote_plus(wayback_link_name)
# create image from Wayback link
wayback_img_name = "wayback.png"
convert_url_to_file(wayback_link, wayback_img_name)
print "wayback file: ", wayback_img_name
try:
timeit.default_timer
start = timeit.default_timer()
# compare two images
img1 = cv2.imread(orig_link_path, 0)
img1_size = os.path.getsize(orig_link_path)
img2 = cv2.imread(wayback_img_name, 0)
img2_size = os.path.getsize(wayback_img_name)
print "extract features ..."
fc1, fc2, mc, msg = compare_screenshots.compare_ext(img1, img2, 'sift', ts1, ts2)
ocr = 0
if str2bool(ocr_flag):
# calculate OCR value from original image
print "perform OCR analysis ..."
ocr = blank.ocr(orig_link_path)
psnr_similarity = "DIFFERENT"
psnr_msg = ""
if str2bool(psnr_flag):
# compare images using imagemagick tool and PSNR metric
print "perform PSNR analysis ..."
if psnr_th is None:
psnr_th = th_psnr
psnr_similarity, psnr_threshold, psnr_msg = compare_psnr(orig_link_path, wayback_img_name)
# remove temporary images
# os.remove(wayback_img_name)
execution_time = timeit.default_timer() - start
print "execution time: ", execution_time
# store in CSV and MongoDB resulting timstamp in ms, execution time in sec,
# original URL, wayback machine URL, wayback timestamp, SIFT features total count,
# matched features count, resulting message, OCR count, file sizes
import datetime
current_time = datetime.datetime.utcnow()
wayback_url_list = wayback_link.split("/")
wayback_timestamp = wayback_url_list[-2]
print "wayback timestamp: ", wayback_timestamp
#print "original link: ", orig_link
store_in_file(current_time, execution_time, orig_link_path, wayback_link, wayback_timestamp, fc1, fc2, mc, msg, ocr, img1_size, img2_size, psnr_similarity, psnr_threshold, psnr_msg, orig_link_path)
insert_mongo(current_time, execution_time, orig_link_path, wayback_link, wayback_timestamp, fc1, fc2, mc, msg, ocr, img1_size, img2_size, psnr_similarity, psnr_threshold, psnr_msg, orig_link_path)
print "result message: ", msg
return msg
except Exception, e:
print "Error:", e, " Please check if Wayback machine and MongoDB are running!"
def handleUri(link_name, counter):
# create screenshot from Wayback using timestamp
link = urllib.unquote_plus(link_name)
#print "link: ", link
initial_uri = link.replace('.jpg', '')
warc_link = "http://localhost:8080/" + initial_uri.replace("http", "/http")
#print "warc link: ", warc_link
print " [%s] Wayback link %s" % (str(counter), warc_link)
# create image from Wayback link
warc_img = 'warc.png'
try:
for line in run_command([PHANTOMJS, RASTERIZE, warc_link, warc_img]):
print(line)
#timeit.default_timer # from last call
start = timeit.default_timer()
# compare two images
img2 = cv2.imread(warc_img, 0)
img2_size = os.path.getsize(warc_img)
print "original screenshot: " + file_path + "/" + name
img1 = cv2.imread(file_path + "/" + name, 0)
img1_size = os.path.getsize(file_path + "/" + name)
# threshold for high similarity between screenshots e.g. 60
# threshold for small differencies e.g. 30
# highest similarity is 100, minimal is 0
fc1, fc2, mc, msg = compare_screenshots.compare_ext(
img1, img2, 'sift', ts1, ts2)
# remove temporary image
os.remove(warc_img)
# calculate OCR value from original image
ocr = blank.ocr_ext(file_path + "/" + name)
execution_time = timeit.default_timer() - start
print "execution time: ", execution_time
# store in CSV and MongoDB resulting timstamp in ms, URL, wayback timestamp,
# execution time in ms, file size, SIFT features total count,
# matched features count, OCR count
import datetime
current_time = datetime.datetime.utcnow()
wayback_timestamp = link[:TIMESTAMP_SIZE]
print "wayback timestamp: ", wayback_timestamp
#print "original link: ", orig_link
store_in_file(current_time, execution_time,
initial_uri[TIMESTAMP_SIZE:], warc_link,
wayback_timestamp, fc1, fc2, mc, msg, ocr, img1_size,
img2_size)
insert_mongo(current_time, execution_time,
initial_uri[TIMESTAMP_SIZE:], warc_link,
wayback_timestamp, fc1, fc2, mc, msg, ocr, img1_size,
img2_size)
except Exception, e:
print "Error:", e, " Please check if Wayback machine and MongoDB are running!"
def handleUri(link_name, counter):
# create screenshot from Wayback using timestamp
link = urllib.unquote_plus(link_name)
#print "link: ", link
initial_uri = link.replace('.jpg', '')
warc_link = "http://localhost:8080/" + initial_uri.replace("http", "/http")
#print "warc link: ", warc_link
print " [%s] Wayback link %s" % (str(counter), warc_link)
# create image from Wayback link
warc_img = 'warc.png'
try:
for line in run_command([PHANTOMJS, RASTERIZE, warc_link, warc_img]):
print (line)
#timeit.default_timer # from last call
start = timeit.default_timer()
# compare two images
img2 = cv2.imread(warc_img, 0)
img2_size = os.path.getsize(warc_img)
print "original screenshot: " + file_path + "/" + name
img1 = cv2.imread(file_path + "/" + name, 0)
img1_size = os.path.getsize(file_path + "/" + name)
# threshold for high similarity between screenshots e.g. 60
# threshold for small differencies e.g. 30
# highest similarity is 100, minimal is 0
fc1, fc2, mc, msg = compare_screenshots.compare_ext(img1, img2, 'sift', ts1, ts2)
# remove temporary image
os.remove(warc_img)
# calculate OCR value from original image
ocr = blank.ocr_ext(file_path + "/" + name)
execution_time = timeit.default_timer() - start
print "execution time: ", execution_time
# store in CSV and MongoDB resulting timstamp in ms, URL, wayback timestamp,
# execution time in ms, file size, SIFT features total count,
# matched features count, OCR count
import datetime
current_time = datetime.datetime.utcnow()
wayback_timestamp = link[:TIMESTAMP_SIZE]
print "wayback timestamp: ", wayback_timestamp
#print "original link: ", orig_link
store_in_file(current_time, execution_time, initial_uri[TIMESTAMP_SIZE:], warc_link, wayback_timestamp, fc1, fc2, mc, msg, ocr, img1_size, img2_size)
insert_mongo(current_time, execution_time, initial_uri[TIMESTAMP_SIZE:], warc_link, wayback_timestamp, fc1, fc2, mc, msg, ocr, img1_size, img2_size)
except Exception, e:
print "Error:", e, " Please check if Wayback machine and MongoDB are running!"
def compare_images_by_path_and_link_ext(orig_link_path,
wayback_link_name,
ocr_flag,
ts1=60,
ts2=30,
psnr_flag=False,
psnr_th=None):
# create screenshot from Wayback using timestamp
print "\noriginal link: ", orig_link_path, ", wayback link: ", wayback_link_name, ", ocr flag: ", ocr_flag, ", high ts1: ", ts1, ", low ts2: ", ts2
# create screenshot from Wayback using timestamp
wayback_link = urllib.unquote_plus(wayback_link_name)
# create image from Wayback link
wayback_img_name = "wayback.png"
convert_url_to_file(wayback_link, wayback_img_name)
print "wayback file: ", wayback_img_name
try:
timeit.default_timer
start = timeit.default_timer()
# compare two images
img1 = cv2.imread(orig_link_path, 0)
img1_size = os.path.getsize(orig_link_path)
img2 = cv2.imread(wayback_img_name, 0)
img2_size = os.path.getsize(wayback_img_name)
print "extract features ..."
fc1, fc2, mc, msg = compare_screenshots.compare_ext(
img1, img2, 'sift', ts1, ts2)
ocr = 0
if str2bool(ocr_flag):
# calculate OCR value from original image
print "perform OCR analysis ..."
ocr = blank.ocr(orig_link_path)
psnr_similarity = "DIFFERENT"
psnr_msg = ""
if str2bool(psnr_flag):
# compare images using imagemagick tool and PSNR metric
print "perform PSNR analysis ..."
if psnr_th is None:
psnr_th = th_psnr
psnr_similarity, psnr_threshold, psnr_msg = compare_psnr(
orig_link_path, wayback_img_name)
# remove temporary images
# os.remove(wayback_img_name)
execution_time = timeit.default_timer() - start
print "execution time: ", execution_time
# store in CSV and MongoDB resulting timstamp in ms, execution time in sec,
# original URL, wayback machine URL, wayback timestamp, SIFT features total count,
# matched features count, resulting message, OCR count, file sizes
import datetime
current_time = datetime.datetime.utcnow()
wayback_url_list = wayback_link.split("/")
wayback_timestamp = wayback_url_list[-2]
print "wayback timestamp: ", wayback_timestamp
#print "original link: ", orig_link
store_in_file(current_time, execution_time, orig_link_path,
wayback_link, wayback_timestamp, fc1, fc2, mc, msg, ocr,
img1_size, img2_size, psnr_similarity, psnr_threshold,
psnr_msg, orig_link_path)
insert_mongo(current_time, execution_time, orig_link_path,
wayback_link, wayback_timestamp, fc1, fc2, mc, msg, ocr,
img1_size, img2_size, psnr_similarity, psnr_threshold,
psnr_msg, orig_link_path)
print "result message: ", msg
return msg
except Exception, e:
print "Error:", e, " Please check if Wayback machine and MongoDB are running!"
def compare_screenshots_sift_ext2(orig_link_path, wayback_link_path, ocr_flag,
psnr_flag):
# create screenshot from Wayback using timestamp
print "\noriginal link: ", orig_link_path, ", wayback link: ", wayback_link_path, ", ocr flag: ", ocr_flag, ", psnr flag: ", psnr_flag
import datetime
current_file_id = timeit.default_timer()
# create image from original link
orig_img_name = 'qa/orig/' + str(current_file_id) + '.png'
# create image from Wayback link
wayback_img_name = 'wayback.png'
try:
# Set the timer for five seconds for file creation due to programm hanging
# if file could not be created from the link by internet
t = Timer(FILE_CREATION_TIME, create_file(orig_link_path,
orig_img_name))
t.start()
tw = Timer(FILE_CREATION_TIME,
create_file(wayback_link_path, wayback_img_name))
tw.start()
if os.path.exists(orig_img_name):
start = timeit.default_timer()
# compare two images
img1 = cv2.imread(orig_img_name, 0)
img1_size = os.path.getsize(orig_img_name)
img2 = cv2.imread(wayback_img_name, 0)
img2_size = os.path.getsize(wayback_img_name)
print "extract features ..."
fc1, fc2, mc, msg = compare_screenshots.compare_ext(
img1, img2, 'sift', ts1, ts2)
ocr = 0
if str2bool(ocr_flag):
# calculate OCR value from original image
print "perform OCR analysis ..."
ocr = blank.ocr(orig_img_name)
psnr_similarity = "None"
psnr_threshold = ts_psnr
psnr_msg = ""
if str2bool(psnr_flag):
# compare images using imagemagick tool and PSNR metric
print "perform PSNR analysis ..."
psnr_similarity = "DIFFERENT"
psnr_similarity, psnr_threshold, psnr_msg = compare_psnr(
orig_img_name, wayback_img_name)
# remove temporary images
os.remove(wayback_img_name)
execution_time = timeit.default_timer() - start
print "execution time: ", execution_time
# store in CSV and MongoDB resulting timstamp in ms, execution time in sec,
# original URL, wayback machine URL, wayback timestamp, SIFT features total count,
# matched features count, resulting message, OCR count, file sizes, PSNR value
# and original file
wayback_url_list = wayback_link_path.split("/")
wayback_timestamp = wayback_url_list[-2]
print "wayback timestamp: ", wayback_timestamp
import datetime
current_time = datetime.datetime.utcnow()
orig_img_name = 'http://127.0.0.1:8000/' + orig_img_name
#print "original link: ", orig_link
store_in_file(current_time, execution_time, orig_link_path,
wayback_link_path, wayback_timestamp, fc1, fc2, mc,
msg, ocr, img1_size, img2_size, psnr_similarity,
psnr_threshold, psnr_msg, orig_img_name)
insert_mongo(current_time, execution_time, orig_link_path,
wayback_link_path, wayback_timestamp, fc1, fc2, mc,
msg, ocr, img1_size, img2_size, psnr_similarity,
psnr_threshold, psnr_msg, orig_img_name)
return mc, fc1, ocr, psnr_similarity
else:
print "Warning: original file could not be retrieved from internet!"
except Exception, e:
print "Error:", e, " Please check if Wayback machine and MongoDB are running!"
