PIL 讀取眼睛位置（需要手動戳……
from PIL import Image
from pylab import *
import os
def piclist(folder):
output = open('index.txt', 'w+')#寫入數據
for root,directors,files in os.walk(folder):
for filename in files:
if filename.endswith(".jpg") or filename.endswith(".jpeg") or filename.endswith(".png")or filename.endswith(".pgm"):
im = array(Image.open(filename))
imshow(im)
output.write(filename)
output.write('\n')
print 'Please click 2 points'
result = ""
x =ginput(2)
print 'you clicked:',x
result += str(int(x[0][0]+0.5))+" "+str(int(x[0][1]+0.5))+" "+str(int(x[1][0]+0.5))+" "+str(int(x[1][1]+0.5))
print result
output.write(result)
output.write('\n')
plt.close('all')
if __name__ == '__main__':
piclist('E:/Code/CV_eigenface/CV_eigenface/faces')#人臉文件夾取點過程
這個顏色問題好像是因爲RGB和BGR的區別……因爲感覺不影響最後的辨識就沒有糾正
這裏我取點是取眼角的……因爲感覺不受眼球運動影響好像比較有道理的樣子……具體你們看心情
存儲結構
具體處理（對齊
From
https://docs.opencv.org/2.4/modules/contrib/doc/facerec/facerec_tutorial.html#aligning-face-images
人臉對齊部分代碼
#!/usr/bin/env python
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# Copyright (c) 2012, Philipp Wagner
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
import sys, math, Image
def Distance(p1,p2):
dx = p2[0] - p1[0]
dy = p2[1] - p1[1]
return math.sqrt(dx*dx+dy*dy)
def ScaleRotateTranslate(image, angle, center = None, new_center = None, scale = None, resample=Image.BICUBIC):
if (scale is None) and (center is None):
return image.rotate(angle=angle, resample=resample)
nx,ny = x,y = center
sx=sy=1.0
if new_center:
(nx,ny) = new_center
if scale:
(sx,sy) = (scale, scale)
cosine = math.cos(angle)
sine = math.sin(angle)
a = cosine/sx
b = sine/sx
c = x-nx*a-ny*b
d = -sine/sy
e = cosine/sy
f = y-nx*d-ny*e
return image.transform(image.size, Image.AFFINE, (a,b,c,d,e,f), resample=resample)
def CropFace(image, eye_left=(0,0), eye_right=(0,0), offset_pct=(0.2,0.2), dest_sz = (70,70)):
# calculate offsets in original image
offset_h = math.floor(float(offset_pct[0])*dest_sz[0])
offset_v = math.floor(float(offset_pct[1])*dest_sz[1])
# get the direction
eye_direction = (eye_right[0] - eye_left[0], eye_right[1] - eye_left[1])
# calc rotation angle in radians
rotation = -math.atan2(float(eye_direction[1]),float(eye_direction[0]))
# distance between them
dist = Distance(eye_left, eye_right)
# calculate the reference eye-width
reference = dest_sz[0] - 2.0*offset_h
# scale factor
scale = float(dist)/float(reference)
# rotate original around the left eye
image = ScaleRotateTranslate(image, center=eye_left, angle=rotation)
# crop the rotated image
crop_xy = (eye_left[0] - scale*offset_h, eye_left[1] - scale*offset_v)
crop_size = (dest_sz[0]*scale, dest_sz[1]*scale)
image = image.crop((int(crop_xy[0]), int(crop_xy[1]), int(crop_xy[0]+crop_size[0]), int(crop_xy[1]+crop_size[1])))
# resize it
image = image.resize(dest_sz, Image.ANTIALIAS)
return image
if __name__ == "__main__":
image = Image.open("arnie.jpg")
CropFace(image, eye_left=(252,364), eye_right=(420,366), offset_pct=(0.1,0.1), dest_sz=(200,200)).save("arnie_10_10_200_200.jpg")
CropFace(image, eye_left=(252,364), eye_right=(420,366), offset_pct=(0.2,0.2), dest_sz=(200,200)).save("arnie_20_20_200_200.jpg")
CropFace(image, eye_left=(252,364), eye_right=(420,366), offset_pct=(0.3,0.3), dest_sz=(200,200)).save("arnie_30_30_200_200.jpg")
CropFace(image, eye_left=(252,364), eye_right=(420,366), offset_pct=(0.2,0.2)).save("arnie_20_20_70_70.jpg")然後是對上面的的main函數做的修改
if __name__ == "__main__":
with open('index.txt', 'r') as file:
while 1:
picname = file.readline()
if not picname:
break
points = file.readline()
points = points.split()
points = map(int, points)
image = Image.open(picname[:-1]) # CUT THE /N
CropFace(image, eye_left=(points[0],points[1]), eye_right=(points[2],points[3]), offset_pct=(0.1,0.35), dest_sz=(72,72)).save("out/"+picname[:-1])
