和拉普拉斯对图像锐化：Iimreadxia
bmpsubplot221imshowItitle原始图像axis5025050200grido
显示网格线axiso
显示坐标系I1im2bwIsubplot222imshowI1title二值图像axis5025050200grido
显示网格线axiso
显示坐标系Hfspecialsobel选择sobel算子Jfilter2HI1卷积运算subplot223imshowJtitlesobel算子锐化图像axis5025050200grido
显示网格线axiso
显示坐标系h010141010拉普拉斯算子J1co
v2I1hsame卷积运算subplot224imshowJ1title拉普拉斯算子锐化图像axis5025050200grido
显示网格线axiso
显示坐标系8梯度算子检测边缘用MATLAB实现如下：Iimreadxia
bmpsubplot231imshowItitle原始图像axis5025050200
fgrido
显示网格线axiso
显示坐标系I1im2bwIsubplot232imshowI1title二值图像axis5025050200grido
显示网格线axiso
显示坐标系I2edgeI1robertsfiguresubplot233imshowI2titleroberts算子分割结果axis5025050200grido
显示网格线axiso
显示坐标系I3edgeI1sobelsubplot234imshowI3titlesobel算子分割结果axis5025050200grido
显示网格线axiso
显示坐标系I4edgeI1Prewittsubplot235imshowI4titlePrewitt算子分割结果axis5025050200grido
显示网格线axiso
显示坐标系9LOG算子检测边缘用MATLAB程序实现如下：Iimreadxia
bmpsubplot221imshowItitle原始图像I1rgb2grayIsubplot222imshowI1title灰度图像I2edgeI1logsubplot223imshowI2
ftitlelog算子分割结果10Ca
y算子检测边缘用MATLAB程序实现如下：Iimreadxia
bmpsubplot221imshowItitle原始图像I1rgb2grayIsubplot222imshowI1title灰度图像I2edgeI1ca
ysubplot223imshowI2titleca
y算子分割结果11边界跟踪（bwtracebou
dary函数）clcclearallIimreadxia
bmpfigureimshowItitle原始图像I1rgb2grayI将彩色图像转化灰度图像thresholdgraythreshI1计算将灰度图像转化为二值图像所需的门限BWim2bwI1threshold将灰度图像转化为二值图像figureimshowBWtitle二值图像dimsizeBWcolrou
ddim2290计算起始点列坐标rowfi
dBWcol1计算起始点行坐标co
ectivity8
um_poi
ts180co
tourbwtracebou
daryBWrowcolNco
ectivity
um_poi
ts提取边界figureimshowI1holdo
plotco
tour2co
tour1gLi
eWidth2title边界跟踪图像12Hough变换Iimreadxia
bmprotIrgb2grayIsubplot221
fimshowrotItitle灰度图像axis5025050200grido
axiso
BWr