samples: fix python samples compatibility with demo.py
This commit is contained in:
Alexander Alekhin
+134
-128
@@ -32,148 +32,154 @@ from __future__ import print_function
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import numpy as np
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import cv2 as cv
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import sys
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BLUE = [255,0,0] # rectangle color
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RED = [0,0,255] # PR BG
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GREEN = [0,255,0] # PR FG
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BLACK = [0,0,0] # sure BG
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WHITE = [255,255,255] # sure FG
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class App():
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BLUE = [255,0,0] # rectangle color
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RED = [0,0,255] # PR BG
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GREEN = [0,255,0] # PR FG
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BLACK = [0,0,0] # sure BG
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WHITE = [255,255,255] # sure FG
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DRAW_BG = {'color' : BLACK, 'val' : 0}
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DRAW_FG = {'color' : WHITE, 'val' : 1}
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DRAW_PR_FG = {'color' : GREEN, 'val' : 3}
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DRAW_PR_BG = {'color' : RED, 'val' : 2}
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DRAW_BG = {'color' : BLACK, 'val' : 0}
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DRAW_FG = {'color' : WHITE, 'val' : 1}
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DRAW_PR_FG = {'color' : GREEN, 'val' : 3}
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DRAW_PR_BG = {'color' : RED, 'val' : 2}
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# setting up flags
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rect = (0,0,1,1)
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drawing = False # flag for drawing curves
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rectangle = False # flag for drawing rect
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rect_over = False # flag to check if rect drawn
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rect_or_mask = 100 # flag for selecting rect or mask mode
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value = DRAW_FG # drawing initialized to FG
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thickness = 3 # brush thickness
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# setting up flags
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rect = (0,0,1,1)
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drawing = False # flag for drawing curves
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rectangle = False # flag for drawing rect
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rect_over = False # flag to check if rect drawn
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rect_or_mask = 100 # flag for selecting rect or mask mode
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value = DRAW_FG # drawing initialized to FG
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thickness = 3 # brush thickness
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def onmouse(event,x,y,flags,param):
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global img,img2,drawing,value,mask,rectangle,rect,rect_or_mask,ix,iy,rect_over
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def onmouse(self, event, x, y, flags, param):
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# Draw Rectangle
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if event == cv.EVENT_RBUTTONDOWN:
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self.rectangle = True
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self.ix, self.iy = x,y
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# Draw Rectangle
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if event == cv.EVENT_RBUTTONDOWN:
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rectangle = True
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ix,iy = x,y
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elif event == cv.EVENT_MOUSEMOVE:
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if self.rectangle == True:
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self.img = self.img2.copy()
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cv.rectangle(self.img, (self.ix, self.iy), (x, y), self.BLUE, 2)
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self.rect = (min(self.ix, x), min(self.iy, y), abs(self.ix - x), abs(self.iy - y))
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self.rect_or_mask = 0
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elif event == cv.EVENT_MOUSEMOVE:
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if rectangle == True:
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img = img2.copy()
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cv.rectangle(img,(ix,iy),(x,y),BLUE,2)
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rect = (min(ix,x),min(iy,y),abs(ix-x),abs(iy-y))
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rect_or_mask = 0
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elif event == cv.EVENT_RBUTTONUP:
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self.rectangle = False
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self.rect_over = True
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cv.rectangle(self.img, (self.ix, self.iy), (x, y), self.BLUE, 2)
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self.rect = (min(self.ix, x), min(self.iy, y), abs(self.ix - x), abs(self.iy - y))
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self.rect_or_mask = 0
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print(" Now press the key 'n' a few times until no further change \n")
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elif event == cv.EVENT_RBUTTONUP:
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rectangle = False
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rect_over = True
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cv.rectangle(img,(ix,iy),(x,y),BLUE,2)
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rect = (min(ix,x),min(iy,y),abs(ix-x),abs(iy-y))
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rect_or_mask = 0
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print(" Now press the key 'n' a few times until no further change \n")
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# draw touchup curves
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# draw touchup curves
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if event == cv.EVENT_LBUTTONDOWN:
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if self.rect_over == False:
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print("first draw rectangle \n")
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else:
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self.drawing = True
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cv.circle(self.img, (x,y), self.thickness, self.value['color'], -1)
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cv.circle(self.mask, (x,y), self.thickness, self.value['val'], -1)
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if event == cv.EVENT_LBUTTONDOWN:
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if rect_over == False:
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print("first draw rectangle \n")
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elif event == cv.EVENT_MOUSEMOVE:
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if self.drawing == True:
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cv.circle(self.img, (x, y), self.thickness, self.value['color'], -1)
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cv.circle(self.mask, (x, y), self.thickness, self.value['val'], -1)
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elif event == cv.EVENT_LBUTTONUP:
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if self.drawing == True:
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self.drawing = False
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cv.circle(self.img, (x, y), self.thickness, self.value['color'], -1)
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cv.circle(self.mask, (x, y), self.thickness, self.value['val'], -1)
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def run(self):
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# Loading images
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if len(sys.argv) == 2:
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filename = sys.argv[1] # for drawing purposes
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else:
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drawing = True
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cv.circle(img,(x,y),thickness,value['color'],-1)
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cv.circle(mask,(x,y),thickness,value['val'],-1)
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print("No input image given, so loading default image, lena.jpg \n")
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print("Correct Usage: python grabcut.py <filename> \n")
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filename = 'lena.jpg'
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elif event == cv.EVENT_MOUSEMOVE:
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if drawing == True:
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cv.circle(img,(x,y),thickness,value['color'],-1)
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cv.circle(mask,(x,y),thickness,value['val'],-1)
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self.img = cv.imread(cv.samples.findFile(filename))
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self.img2 = self.img.copy() # a copy of original image
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self.mask = np.zeros(self.img.shape[:2], dtype = np.uint8) # mask initialized to PR_BG
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self.output = np.zeros(self.img.shape, np.uint8) # output image to be shown
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# input and output windows
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cv.namedWindow('output')
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cv.namedWindow('input')
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cv.setMouseCallback('input', self.onmouse)
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cv.moveWindow('input', self.img.shape[1]+10,90)
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print(" Instructions: \n")
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print(" Draw a rectangle around the object using right mouse button \n")
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while(1):
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cv.imshow('output', self.output)
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cv.imshow('input', self.img)
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k = cv.waitKey(1)
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# key bindings
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if k == 27: # esc to exit
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break
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elif k == ord('0'): # BG drawing
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print(" mark background regions with left mouse button \n")
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self.value = self.DRAW_BG
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elif k == ord('1'): # FG drawing
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print(" mark foreground regions with left mouse button \n")
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self.value = self.DRAW_FG
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elif k == ord('2'): # PR_BG drawing
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self.value = self.DRAW_PR_BG
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elif k == ord('3'): # PR_FG drawing
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self.value = self.DRAW_PR_FG
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elif k == ord('s'): # save image
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bar = np.zeros((self.img.shape[0], 5, 3), np.uint8)
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res = np.hstack((self.img2, bar, self.img, bar, self.output))
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cv.imwrite('grabcut_output.png', res)
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print(" Result saved as image \n")
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elif k == ord('r'): # reset everything
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print("resetting \n")
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self.rect = (0,0,1,1)
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self.drawing = False
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self.rectangle = False
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self.rect_or_mask = 100
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self.rect_over = False
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self.value = self.DRAW_FG
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self.img = self.img2.copy()
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self.mask = np.zeros(self.img.shape[:2], dtype = np.uint8) # mask initialized to PR_BG
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self.output = np.zeros(self.img.shape, np.uint8) # output image to be shown
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elif k == ord('n'): # segment the image
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print(""" For finer touchups, mark foreground and background after pressing keys 0-3
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and again press 'n' \n""")
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try:
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if (self.rect_or_mask == 0): # grabcut with rect
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bgdmodel = np.zeros((1, 65), np.float64)
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fgdmodel = np.zeros((1, 65), np.float64)
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cv.grabCut(self.img2, self.mask, self.rect, bgdmodel, fgdmodel, 1, cv.GC_INIT_WITH_RECT)
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self.rect_or_mask = 1
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elif self.rect_or_mask == 1: # grabcut with mask
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bgdmodel = np.zeros((1, 65), np.float64)
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fgdmodel = np.zeros((1, 65), np.float64)
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cv.grabCut(self.img2, self.mask, self.rect, bgdmodel, fgdmodel, 1, cv.GC_INIT_WITH_MASK)
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except:
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import traceback
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traceback.print_exc()
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mask2 = np.where((self.mask==1) + (self.mask==3), 255, 0).astype('uint8')
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self.output = cv.bitwise_and(self.img2, self.img2, mask=mask2)
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print('Done')
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elif event == cv.EVENT_LBUTTONUP:
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if drawing == True:
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drawing = False
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cv.circle(img,(x,y),thickness,value['color'],-1)
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cv.circle(mask,(x,y),thickness,value['val'],-1)
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if __name__ == '__main__':
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# print documentation
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print(__doc__)
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# Loading images
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if len(sys.argv) == 2:
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filename = sys.argv[1] # for drawing purposes
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else:
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print("No input image given, so loading default image, lena.jpg \n")
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print("Correct Usage: python grabcut.py <filename> \n")
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filename = 'lena.jpg'
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img = cv.imread(cv.samples.findFile(filename))
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img2 = img.copy() # a copy of original image
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mask = np.zeros(img.shape[:2],dtype = np.uint8) # mask initialized to PR_BG
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output = np.zeros(img.shape,np.uint8) # output image to be shown
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# input and output windows
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cv.namedWindow('output')
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cv.namedWindow('input')
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cv.setMouseCallback('input',onmouse)
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cv.moveWindow('input',img.shape[1]+10,90)
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print(" Instructions: \n")
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print(" Draw a rectangle around the object using right mouse button \n")
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while(1):
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cv.imshow('output',output)
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cv.imshow('input',img)
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k = cv.waitKey(1)
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# key bindings
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if k == 27: # esc to exit
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break
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elif k == ord('0'): # BG drawing
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print(" mark background regions with left mouse button \n")
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value = DRAW_BG
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elif k == ord('1'): # FG drawing
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print(" mark foreground regions with left mouse button \n")
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value = DRAW_FG
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elif k == ord('2'): # PR_BG drawing
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value = DRAW_PR_BG
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elif k == ord('3'): # PR_FG drawing
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value = DRAW_PR_FG
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elif k == ord('s'): # save image
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bar = np.zeros((img.shape[0],5,3),np.uint8)
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res = np.hstack((img2,bar,img,bar,output))
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cv.imwrite('grabcut_output.png',res)
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print(" Result saved as image \n")
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elif k == ord('r'): # reset everything
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print("resetting \n")
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rect = (0,0,1,1)
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drawing = False
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rectangle = False
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rect_or_mask = 100
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rect_over = False
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value = DRAW_FG
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img = img2.copy()
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mask = np.zeros(img.shape[:2],dtype = np.uint8) # mask initialized to PR_BG
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output = np.zeros(img.shape,np.uint8) # output image to be shown
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elif k == ord('n'): # segment the image
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print(""" For finer touchups, mark foreground and background after pressing keys 0-3
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and again press 'n' \n""")
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if (rect_or_mask == 0): # grabcut with rect
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bgdmodel = np.zeros((1,65),np.float64)
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fgdmodel = np.zeros((1,65),np.float64)
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cv.grabCut(img2,mask,rect,bgdmodel,fgdmodel,1,cv.GC_INIT_WITH_RECT)
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rect_or_mask = 1
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elif rect_or_mask == 1: # grabcut with mask
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bgdmodel = np.zeros((1,65),np.float64)
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fgdmodel = np.zeros((1,65),np.float64)
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cv.grabCut(img2,mask,rect,bgdmodel,fgdmodel,1,cv.GC_INIT_WITH_MASK)
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mask2 = np.where((mask==1) + (mask==3),255,0).astype('uint8')
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output = cv.bitwise_and(img2,img2,mask=mask2)
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App().run()
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cv.destroyAllWindows()
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