refactor: 项目目录结构重组

- 中文目录名改为英文：cDNA图像处理实例→examples，参考资料→references
- web→app（Flask应用标准命名）
- 输出目录平移到 data/output/simple/ 和 data/output/full/
- 输入图像统一到 data/input/
- 构建脚本移到 scripts/
- 源码文件改用 snake_case 命名
- 更新所有文件路径引用和文档

references/matlab/showphi.m

@@ -0,0 +1,26 @@
+function showphi(I, phi, i)
+% show curve evolution of phi
+
+% Copyright (c) 2009, 
+% Yue Wu @ ECE Department, Tufts University
+% All Rights Reserved  
+
+for j = 1:size(phi,3)
+    phi_{j} = phi(:,:,j);
+end
+%   imshow(I,'initialmagnification','fit','displayrange',[0 255]);
+%   hold on;
+
+  if size(phi,3) == 1
+      contour(phi_{1}, [0 0], 'r','LineWidth',4);
+      contour(phi_{1}, [0 0], 'g','LineWidth',1.3);
+  else
+      contour(phi_{1}, [0 0], 'r','LineWidth',4);
+      contour(phi_{1}, [0 0], 'x','LineWidth',1.3);
+      contour(phi_{2}, [0 0], 'g','LineWidth',4);
+      contour(phi_{2}, [0 0], 'x','LineWidth',1.3);
+  end
+%   hold off; 
+%   title([num2str(i) ' Iterations']); 
+  
+  drawnow;