function?img?=?CreateCircleEdgeImage（nrowsncolsucvcradius）
%
%?Support?function?for?Examples?3?and?4.?This?draws?a?bright?circle?on?a?
%?dark?bakground?in?a?128x128?image.
%
%?
%?Version?History:
%???v1.0?-?Initial?release?06?Apr?2018
%
%?Developed?by:
%?Dr.?John?A.?Christian
%?Rensselaer?Polytechnic?Institute?（RPI）
%
%?Copyright?2018?John?Christian
%


%Upsampling?of?image
upsample?=?51;

%Init?image?with?all?zeros
nrows_up?=?upsample?*?nrows;
ncols_up?=?upsample?*?ncols;
img_up?=?zeros（nrows_upncols_up）;

%Draw?circle?in?higher?resolution?image
A?=?（upsample-1）/2?+?1?-?upsample;
vmat_up?=?[1:1:nrows_up]‘*ones（1ncols_up）;
umat_up?=?ones（nrows_up1）*[1:1:ncols_up];
d_up?=?（（umat_up-A）/upsample?-?uc）.^2?+?（（vmat_up-A）/upsample-vc）.^2;
img_up（d_up<=radius^2）?=?1;

%Init?loop?parameters
delta?=?（upsample-1）/2;
BoxSize?=?upsample^2;

%Init?128x128?image
img?=?zeros（nrowsncols）;

%Sum-down?large?inmage?into?desired?image?size
for?row_ii?=?1:nrows
????
????row_ii_up?=?A?+?upsample*row_ii;
????row_range?=?[（row_ii_up-delta）:（row_ii_up+delta）];
????
????for?col_ii?=?1:ncols
????????
????????col_ii_up?=?A?+?upsample*col_ii;
????????
????????col_range?=?[（col_ii_up-delta）:（col_ii_up+delta）];
????????
????????box?=?img_up（row_rangecol_range）;
????????
????????img（row_iicol_ii）?=?sum（?box（:）?）?/?BoxSize?;
????????
????end
end

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件????????1347??2018-04-06?22:24??CreateCircleEdgeImage.m
?????文件?????????210??2018-04-06?22:24??__MACOSX\._CreateCircleEdgeImage.m
?????文件????????1315??2018-04-06?22:24??CreateStraightEdgeImage.m
?????文件?????????210??2018-04-06?22:24??__MACOSX\._CreateStraightEdgeImage.m
?????文件????????1478??2018-04-06?22:24??Example1.m
?????文件?????????210??2018-04-06?22:24??__MACOSX\._Example1.m
?????文件????????1823??2018-04-06?22:24??Example2.m
?????文件?????????210??2018-04-06?22:24??__MACOSX\._Example2.m
?????文件????????1696??2018-04-06?22:24??Example3.m
?????文件?????????210??2018-04-06?22:24??__MACOSX\._Example3.m
?????文件????????2054??2018-04-06?22:24??Example4.m
?????文件?????????210??2018-04-06?22:24??__MACOSX\._Example4.m
?????文件????????7150??2018-04-06?22:24??SubpixelEdge.m
?????文件?????????210??2018-04-06?22:24??__MACOSX\._SubpixelEdge.m
?????文件????????1314??2018-04-06?22:24??license.txt