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ee.Image.rightShift
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針對 image1 和 image2 中每個相符的頻帶組合，計算 v1 向右位移 v2 位元的帶正負號位移。如果 image1 或 image2 只有 1 個頻帶，則會與另一張圖片中的所有頻帶進行比較。如果圖片的波段數量相同，但名稱不同，系統會依自然順序成對使用。輸出頻帶會以較長的輸入命名，如果長度相同，則會以 image1 的順序命名。輸出像素的類型是輸入類型的聯集。
| 用量 | 傳回 |
|---|
Image.rightShift(image2) | 圖片 |
| 引數 | 類型 | 詳細資料 |
|---|
這個：image1 | 圖片 | 用來擷取左運算元頻帶的圖片。 |
image2 | 圖片 | 系統會從這張圖片擷取右運算元頻帶。 |
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上次更新時間：2025-07-26 (世界標準時間)。
[null,null,["上次更新時間：2025-07-26 (世界標準時間)。"],[[["\u003cp\u003eCalculates the signed right shift, applying it to corresponding bands in two input images.\u003c/p\u003e\n"],["\u003cp\u003eIf one image has a single band, it's used against all bands of the other image.\u003c/p\u003e\n"],["\u003cp\u003eOutput image bands inherit names from the longer input, or from \u003ccode\u003eimage1\u003c/code\u003e if both inputs have the same number of bands.\u003c/p\u003e\n"],["\u003cp\u003ePixel type in the output image is determined by combining the input types to accommodate both.\u003c/p\u003e\n"]]],["Performs a signed right shift operation between two images (`image1` and `image2`). The operation shifts `image1`'s bands right by `image2`'s bands' values. If one image has a single band, it's applied to all bands of the other. When band counts match but names differ, pairwise shifting is done. Output band names are derived from the longer input or `image1` if lengths are equal. Output pixel type is a union of input types. Returns a new image.\n"],null,["# ee.Image.rightShift\n\nCalculates the signed right shift of v1 by v2 bits for each matched pair of bands in image1 and image2. If either image1 or image2 has only 1 band, then it is used against all the bands in the other image. If the images have the same number of bands, but not the same names, they're used pairwise in the natural order. The output bands are named for the longer of the two inputs, or if they're equal in length, in image1's order. The type of the output pixels is the union of the input types.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------|---------|\n| Image.rightShift`(image2)` | Image |\n\n| Argument | Type | Details |\n|----------------|-------|---------------------------------------------------------|\n| this: `image1` | Image | The image from which the left operand bands are taken. |\n| `image2` | Image | The image from which the right operand bands are taken. |"]]
