Error in image_processing_project>checkhorizontal (line 74)
for n = 0:steps
Output argument "c" (and maybe others) not assigned during call to
"C:\Users\bostock_h\Documents\MATLAB\image_processing_project.m>image_processing_project/checkhorizontal".
Error in image_processing_project/checkright (line 64)
c = checkhorizontal(i1,j,x1);
Error in image_processing_project (line 22)
c = checkright (i1,j);
function image_processing_project
M = imread('C:\Users\bostock_h\Documents\Images\130510_162.jpg');
M = int16(M);
x = 975;
y = 1010;
sum=0;
global steps
steps = 12;
global lowlimit
lowlimit = 40;
global highlimit
highlimit = 200;
global movel
movel = 10;
prog = 0;
pixelnum = (x - movel - 1)*y;
for j = 1:y
for i1 = movel + 1:x
c = checkright (i1,j);
if c ~= 0
b = 1;
else
b = -1;
end
if c == 0
c = checkleft (i1,j);
end
if c == -1
if b == 1
M(j,i1-movel) = 1;
end
end
if c == 1
if b == 1
M(j,i1-movel) = 250;
end
end
if c == 1
if b == -1
M(j,i1+movel) = 250;
end
end
if c == -1
if b == -1
M(j,i1+movel) = 1;
end
end
prog = prog + 1;
percent = (prog / pixelnum) * 100
end
end
imagesc(M)
colormap(gray)
function c = checkright(i1,j)
x1 = 1;
c = checkhorizontal(i1,j,x1);
end
function c = checkleft(i1,j)
x1 = -1;
c = checkhorizontal(i1,j,x1);
end
function c = checkhorizontal(i1,j,x1)
for n = 0:steps
sum = M(j, i1 + n*x1) + sum;
end
avg = sum / steps;
if avg < lowlimit
c = -1*x1;
end
if avg > highlimit
c = 1*x1;
end
end
end
