jlengrand/Tippy
1
0
Fork 0
mirror of https://github.com/jlengrand/Tippy.git synced 2026-03-10 08:51:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

Finishes simple_region_growing insertion

Browse Source 
Some errors corrected in function code.
Adds "real life" tests with an image an non zero pixels count.
Examples to be added soon, with mouse value operations. 



Signed-off-by: Julien Lengrand-Lambert <julien@lengrandlambert.fr>
This commit is contained in:
Julien Lengrand-Lambert
2011-11-27 21:10:06 +01:00
parent 1304b62f6e
commit 2a6dc49ff3
3 changed files with 11 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

BIN
tippy/data/gnu.jpg Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 6.5 KiB

5
tippy/segmentations.py
View File

@@ -8,6 +8,7 @@ Created on Nov 26, 2011
'''
import sys
import cv
import numpy
def simple_region_growing(img, seed, threshold=1):
"""
@@ -31,7 +32,7 @@ def simple_region_growing(img, seed, threshold=1):
raise ValueError("(%s) Positive value expected!" % (sys._getframe().f_code.co_name))
# seed tests
if not((isinstance(seed, tuple)) and (len(seed) is 2) ) :
raise ValueError("(%s) (x, y) variable expected!" % (sys._getframe().f_code.co_name))
raise TypeError("(%s) (x, y) variable expected!" % (sys._getframe().f_code.co_name))
dims = cv.GetSize(img)
if (seed[0] or seed[1] ) < 0 :
@@ -56,7 +57,7 @@ def simple_region_growing(img, seed, threshold=1):
cur_pix = [seed[0], seed[1]]
#Spreading
while(dist<thres and size<pix_area):
while(dist<threshold and size<pix_area):
#adding pixels
for j in range(4):
#select new candidate

10
tippy/tests/test_segmentation.py
View File

@@ -23,7 +23,7 @@ class Test(unittest.TestCase):
self.dims = cv.GetSize(self.img_1c)
self.neg_thres = -0
self.neg_thres = -10
self.bad_thres = "A"
self.seed = (10, 10)
@@ -53,10 +53,14 @@ class Test(unittest.TestCase):
self.assertRaises(TypeError, lambda: se.simple_region_growing(self.img_1c, self.bad_seed))
self.assertRaises(TypeError, lambda: se.simple_region_growing(self.img_1c, self.long_seed))
# output test
out_img = simple_region_growing(self.img_1c, self.seed)
out_img = se.simple_region_growing(self.img_1c, self.seed)
self.assertEqual(out_img.depth, cv.IPL_DEPTH_8U)
self.assertEqual(out_img.nChannels, 1)
self.assertEqual(cv.GetSize(out_img), cv.GetSize(self.img_1C))
self.assertEqual(cv.GetSize(out_img), cv.GetSize(self.img_1c))
# function result tests
img_gnu = cv.LoadImage("../data/gnu.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE) # 1 channel image
out_img = se.simple_region_growing(img_gnu, seed=(70, 106), threshold=20)
self.assertEqual(cv.CountNonZero(out_img), 584)
#if __name__ == "__main__":
#import sys;sys.argv = ['', 'Test.testName']