函數
>
圖像處理
>
圖像組合
> 範例：取代部分圖像
範例：取代部分圖像
使用
putregion
函數將矩陣
N
插入至矩陣
M
的位置
(row, col)
。插入到指定位置時，矩陣
M
必須大到能包含所有的
N
。
如需使用此範例的資訊，請參閱
＜關於圖像處理範例＞
。
1.
讀取起始圖像。
<region id="ID0EI5KY" top="144" left="24" width="196.246666666667" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <define xmlns="http://schemas.mathsoft.com/math50"> <id label="None">R</id> <apply> <id>READ_IMAGE</id> <str xml:space="preserve">camera.bmp</str> </apply> </define> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
<region id="ID0EW5KY" top="168" left="24" width="88.5783333333333" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <eval xmlns="http://schemas.mathsoft.com/math50"> <apply> <id>rows</id> <id>R</id> </apply> <result> <real>256</real> </result> </eval> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
<region id="ID0EE6KY" top="168" left="144" width="83.4416666666667" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <eval xmlns="http://schemas.mathsoft.com/math50"> <apply> <id>cols</id> <id>R</id> </apply> <result> <real>256</real> </result> </eval> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
2.
建立比第一張小的第二張圖像。
<region id="ID0EUALY" top="240" left="24" width="340.846666666667" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <define xmlns="http://schemas.mathsoft.com/math50"> <id label="None">N</id> <apply> <id>submatrix</id> <sequence> <apply> <id>READ_IMAGE</id> <str xml:space="preserve">mona.bmp</str> </apply> <real>70</real> <real>100</real> <real>60</real> <real>140</real> </sequence> </apply> </define> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
<region id="ID0ECBLY" top="264" left="24" width="54.06" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <define xmlns="http://schemas.mathsoft.com/math50"> <id label="None">col</id> <real>170</real> </define> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
<region id="ID0EQBLY" top="288" left="24" width="53.2133333333333" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <define xmlns="http://schemas.mathsoft.com/math50"> <id label="None">row</id> <real>90</real> </define> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
<region id="ID0E5BLY" top="312" left="24" width="78.285" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <eval xmlns="http://schemas.mathsoft.com/math50"> <apply> <id>cols</id> <id>N</id> </apply> <result> <real>81</real> </result> </eval> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
<region id="ID0EMCLY" top="336" left="24" width="83.4216666666667" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <eval xmlns="http://schemas.mathsoft.com/math50"> <apply> <id>rows</id> <id>N</id> </apply> <result> <real>31</real> </result> </eval> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
確定
<region id="ID0E4CLY" top="408" left="24" width="128.798333333333" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <eval xmlns="http://schemas.mathsoft.com/math50"> <apply> <minus /> <apply> <plus /> <id>col</id> <apply> <id>cols</id> <id>N</id> </apply> </apply> <real>1</real> </apply> <result> <real>250</real> </result> </eval> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
小於
<region id="ID0EGDLY" top="408" left="264" width="83.4416666666667" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <eval xmlns="http://schemas.mathsoft.com/math50"> <apply> <id>cols</id> <id>R</id> </apply> <result> <real>256</real> </result> </eval> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
<region id="ID0ESDLY" top="432" left="24" width="139.071666666667" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <eval xmlns="http://schemas.mathsoft.com/math50"> <apply> <minus /> <apply> <plus /> <id>row</id> <apply> <id>rows</id> <id>N</id> </apply> </apply> <real>1</real> </apply> <result> <real>120</real> </result> </eval> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
小於
<region id="ID0E2DLY" top="432" left="264" width="88.5783333333333" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <eval xmlns="http://schemas.mathsoft.com/math50"> <apply> <id>rows</id> <id>R</id> </apply> <result> <real>256</real> </result> </eval> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
3.
將矩陣
N
插入
M
，並檢視所得出的圖像：
<region id="ID0ESFLY" top="504" left="24" width="165.43" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <define xmlns="http://schemas.mathsoft.com/math50"> <id label="None">C</id> <apply> <id>putregion</id> <sequence> <id>R</id> <id>N</id> <id>row</id> <id>col</id> </sequence> </apply> </define> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
<region id="ID0EAGLY" top="528" left="24" width="292.903333333333" height="21.2" xmlns="http://schemas.mathsoft.com/worksheet50"> <math> <define xmlns="http://schemas.mathsoft.com/math50"> <id label="None">DummyC</id> <apply> <id>WRITEBMP</id> <sequence> <str xml:space="preserve">mona_in_camera.bmp</str> <id>C</id> </sequence> </apply> </define> <resultFormat> <decimal precision="round-trip-decimal-places" show-trailing-zeros="false" radix="dec" imaginary-value="i" /> <matrix size="12,12" offset="0,0" /> </resultFormat> </math> </region>
(camera.bmp)
(mona_in_camera.bmp)
複製運算式
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