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on 7 Nov 2023
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drawframe(1);
Write your drawframe function below
function drawframe(f)
rng default
L=800;
fwPic=imnoise(zeros(L),'gaussian',0,0.1);
if f==3,imshow(fwPic),end
fwPic(fwPic<0.996)=0;
if f==7,imshow(fwPic),end
% 图形学膨胀
fwPic=imdilate(fwPic,strel('square',3));
if f==14,imshow(fwPic),end
% 特效[风]
for i=1:180
tPic=[zeros(L,1),fwPic(:,1:end-1)].*.99;
fwPic(fwPic<tPic)=tPic(fwPic<tPic);
end
if f==21,imshow(fwPic),end
% 极坐标变换
[t,r]=meshgrid(linspace(-pi,pi,L),L:-1:1);
[X,Y]=meshgrid((1:2*L)-L-.5);
[T,R]=cart2pol(X,Y);
fwPic=interp2(t,r,fwPic',T,R,'linear',0);
if f==28,imshow(fwPic),end
% 中心模糊
fwPic=imgaussfilt(fwPic,1.5);
fwPic=fwPic./max(max(fwPic)).*1.02;
if f==35,imshow(fwPic),end
% 图像上色
CList=[239,250,210
229,164,122
232,150,138
255,164,204
192,58 ,111
158,10 ,26
224,168,121];
% CList=bone().*255;
% CList=pink().*255;
% CList=winter().*255;
CNum=size(CList,1);
tList=linspace(0,1,CNum);
RMat=R./max(max(R));
rPic=interp1(tList,CList(:,1),RMat).*fwPic;
gPic=interp1(tList,CList(:,2),RMat).*fwPic;
bPic=interp1(tList,CList(:,3),RMat).*fwPic;
fwPic=uint8(cat(3,rPic,gPic,bPic));
if (f==42)||(f<=2),imshow(fwPic),end
end
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