wassname/scikit-image
1
0
Fork 0
mirror of https://github.com/wassname/scikit-image.git synced 2026-09-09 11:33:41 +08:00
Code Issues Packages Projects Releases Wiki Activity

fix hog.py - orientation and visualization

Browse Source
This commit is contained in:
Pavel Campr
2012-08-20 14:29:01 -07:00
committed by Stefan van der Walt
parent 6410905b3b
commit 25d94b36c6
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
skimage/feature/_hog.py
+3 -3
View File
@@ -96,7 +96,7 @@ def hog(image, orientations=9, pixels_per_cell=(8, 8),
"""
magnitude = sqrt(gx**2 + gy**2)
orientation = arctan2(gy, (gx + 1e-15)) * (180 / pi) + 90
orientation = arctan2(gy, (gx + 1e-15)) * (180 / pi) % 180
sy, sx = image.shape
cx, cy = pixels_per_cell
@@ -137,8 +137,8 @@ def hog(image, orientations=9, pixels_per_cell=(8, 8),
centre = tuple([y * cy + cy // 2, x * cx + cx // 2])
dx = radius * cos(float(o) / orientations * np.pi)
dy = radius * sin(float(o) / orientations * np.pi)
rr, cc = draw.bresenham(centre[0] - dx, centre[1] - dy,
centre[0] + dx, centre[1] + dy)
rr, cc = draw.bresenham(centre[0] - dy, centre[1] - dx,
centre[0] + dy, centre[1] + dx)
hog_image[rr, cc] += orientation_histogram[y, x, o]
"""