figure表示显示图像窗口,imshow表示显示图像,后面括号里的一大堆表示显示图像的各种参数:log(abs(F2)表示将F2进行绝对值处理再log处理,[-1,5]用指定的灰度范围 [low high]显示灰度图像,小于-1的像素则置为黑色、大于5则置为白色,'notruesize'是老版本中的参数,新版本中没有这一项参数了,用'I...
imshow(I,[low high])用指定的灰度范围 [low high]显示灰度图像 I。显示结果,图像中灰度值等于或低于low的都将用黑色显示,而灰度值大于等于high的都显示为白色,介于low和high之间的用其灰度级的默认值的中间色调显示。如果你用了一个空矩阵 ([]) 来代替 [low high], imshow 函数将使用 [min...
curr_ex =0;forjinrange(0, display_rows):foriinrange(0, display_cols):if(curr_ex >= nrows):break; max_val = np.max(np.abs(x[curr_ex, :])) x_splice_start = pad + j*(example_height + pad) y_splice_start = pad + i*(example_width + pad) display_array[x_splice_start:(x...
Expected behaviour imshow should open a window Actual behaviour python process running but no window shows Steps to reproduce def show_image(image): cv2.imshow(mat=image, winname="tt") # Wait for a key press to exit cv2.waitKey() # Close...
nd . H1(i)=-(sum(h1(1:i).*log10(h1(i+1))); . H2(i)=-(sum(h1((i+1):len).*log10(h1((i+1):len))); . H(i)=(1/P1)*H1(i)+H2(i)*(1/P2)+log10(P1*P2); . nd . x(H);%获得最大熵 . %--- . imshow(I,'border','tight');title('原图'); . I1=im2bw(...