def redraw(self):
def func(x, y):
return eval(self.surf_func, globals(), locals())
try:
self.map1[:], self.map2[:] = make_surf_map(func, self.range, self.w, self.h, self.view_height)
except SyntaxError:
return
if self.grid:
img = self.gridimg
else:
img = self.img
cv.remap(img, self.dstimg, self.map1, self.map2, cv.INTER_LINEAR)
cv.imshow("Remap Demo", self.dstimg)
def redraw(self):
def func(x, y):
return eval(self.surf_func, globals(), locals())
try:
self.map1[:], self.map2[:] = make_surf_map(
func, self.range, self.w, self.h, self.view_height)
except SyntaxError:
return
if self.grid:
img = self.gridimg
else:
img = self.img
cv.remap(img, self.dstimg, self.map1, self.map2, cv.INTER_LINEAR)
cv.imshow("Remap Demo", self.dstimg)
# -*- coding: utf-8 -*-
import pyopencv as cv
import numpy as np
img = cv.imread("lena.jpg")
size = img.size()
w, h = size
img2 = cv.Mat()
map1, map2 = np.meshgrid(
np.linspace(0,w*2,w).astype(np.float32),
np.linspace(0,h*2,h).astype(np.float32),
)
map1 = cv.asMat(map1)
map2 = cv.asMat(map2)
cv.remap(img, img2, map1, map2, cv.INTER_LINEAR)
cv.namedWindow( "Remap Resize", cv.CV_WINDOW_AUTOSIZE )
cv.imshow("Remap Resize", img2)
cv.waitKey(0)
