生物医学图像处理：几何变换

几何运算 要点 *干移、旋转、放大缩小、反转 *几何变形 *后向映射、前向映射 *双线性内插 *多项式卷绕 *几何校正 *图像配准

要点： ¬平移、旋转、放大缩小、反转 ¬几何变形 ¬后向映射、前向映射 ¬双线性内插 ¬多项式卷绕 ¬几何校正 ¬图像配准 几何运算

几何运算 干移 旋转 放大缩小 反转 延展 几何变形

几何运算 平移 旋转 放大缩小 反转 延展 几何变形

实例

FiLe Edit View Insert Tools window Optionis Help Transformed image Next Power of 2 Previous Power of 2 Desired Length 220 Direction to extend Both Next Power of 2 Previous Power of 2 Desired Length 200 Direction to extend Both Extension Mode ero Padding 255 Brightness History

File Edit View Insert Tools window Options Heip Transformed image Next Power of 2 Previous Power of 2 Desired Length Direction to truncate Both Next Power of 2 Previous Power of 2 Desired Length Direction to truncate Both Truncate 255 Brightness Y+ Center On History

File Edit View Insert Tools window Options Heip Transformed image Length Next Power of 2 Previous Power of 2 Desired Length Direction to extend Right Next Power of 2 512 Previous Power of 2 128 Desired Length 200 Direction to truncate Both Extension Mode Extend Truncate Nb. Colors Brightness Y+ Center On History

FiLe Edit View Insert Tools window Optionis Help Transformed image Next Power of 2 Previous Power of 2 Desired Length Direction to extend Right Next Power of 2 Previous Power of 2 Desired Length 512 Direction to extend Down Extension Mode Nb. Colors Brightness Center n History

File Edit View Insert Tools window Options Heip Transformed image Next Power of 2 Previous Power of 2 Desired Length Direction to extend Right Next Power of 2 Previous Power of 2 Desired Length 512 Direction to extend Down Extension Mode Nb. Colors Brightness History

File Edit View Insert Tools window Options Heip Transformed image Length Next Power of 2 Previous Power of 2 Desired Length Direction to extend Both Next Power of 2 512 Previous Power of 2 128 Desired Length 512 Direction to extend Both Extension Mode Nb. Colors Brightness +Ce History

2 Image Extensi on /Truncation File Edit View Insert Tools window Options Help Transformed image Length Next Power of 2 Previous Power of 2 Desired Length Direction to extend Both Next Power of 2 512 Previous Power of 2 128 Desired Length 512 Direction to extend Both Extension Mode 255 Brightness +Ce History