www.pudn.com > codebar.rar > ImageEdgePoint.m

%边界点的读取 
% 
function [stlist,endlist,Count,vpixel,hpixel] = ImageEdgePoint(I,height,width) 
 
stlist = zeros(height,1);    %每一行的起点 
endlist = zeros(height,1); 
vpixel = zeros(height,1); 
hpixel = zeros(width,1); 
stcout = 1; 
endcout = 0; 
for i=1:height 
    newline = true; 
    endflag = false; 
    for j=1:width 
    	if(j > 1) 
        	if((I(i,j) == 0) && (I(i,j-1) == 1)) 
                endlist(i,1) = j; 
                endflag = true; 
                %若前面一点为白，后面一点为黑，则认为是最后一点，通过不断的迭代，直到本行完了为止 
            end 
             
        end 
		if(I(i,j) == 1)                     %统计白点 
            if(newline == true) 
                stlist(i,1) = j; 
                stcout = stcout+1; 
                newline = false; 
            end 
            vpixel(i,1) = vpixel(i,1) + 1;%水平投影 
            hpixel(j,1) = hpixel(j,1) + 1;%PixelH[j] += 1;%垂直投影 
        end 
    end 
    if(endflag == true) 
        endcout = endcout+1; 
    end 
end 
Count=[stcout endcout]; 
 
%stcout = stcount; 
%endcout = endcount;