how to Blend output image to input

function F=edgecolor(nm);
I=imread('Edge.jpg');
[x y z]=size(I);
if z==1
    rslt=edge(I,'canny');
elseif z==3
    im=rgb2ycbcr(I);
    dx=edge(im(:,:,1),'canny');
    dx=(dx*255);
    img(:,:,1)=dx;
    img(:,:,2)=im(:,:,2);
    img(:,:,3)=im(:,:,3);
    rslt=ycbcr2rgb(uint8(img));
end

 a=rslt;
 im=im2double(a)
% len=21;
% theta=11;
% psf=fspecial('motoin',len,theta);
% blurred=imfilter(a,psf,'conv','circular')
j=fspecial('disk',.25);
k=imfilter(i,j);
l=im2double(k)

[KSSV]

What do you mean by blend?

[Badboy]

I want blur original output.... then edge and blur output want to blend to see edge glow ...I already detected the edge but can't blur and blend it

[Image Analyst]

Attach the nm image if you want us to help you.

https://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer