自 2025 年 3 月 27 日起，我們建議您使用 android-latest-release 而非 aosp-main 建構及貢獻 AOSP。詳情請參閱「Android 開放原始碼計畫變更」。
黑白相機
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
搭載 Android 9 以上版本的裝置可支援單色相機。Android 10 進一步支援 Y8 串流格式、黑白和近紅外 (NIR) 濾鏡陣列靜態中繼資料，以及黑白相機的 DngCreator 函式。
有了這項功能，裝置製造商就能實作單色或近紅外線相機裝置，並使用 Y8 串流格式減少記憶體用量。黑白相機可做為邏輯多相機裝置的基礎實體相機，以改善低光源雜訊特性。
實作
硬體需求
如要實作這項功能，裝置必須具備單色相機感應器和影像訊號處理器 (ISP)，以便處理感應器輸出內容。
實作單色相機
如要宣傳攝影機裝置為單色相機，Camera HAL 必須符合下列需求：
對於支援 Y8 串流格式的單色裝置，相機 HAL 必須支援在強制串流組合 (包括重新處理) 中，將 YUV_420_888 格式與 Y8 格式互換。
這項功能會使用下列公開 API：
如要進一步瞭解 Camera HAL，請參閱 docs.html。如要進一步瞭解相關的公開 API，請參閱 ImageFormat、CameraCharacteristics、CaptureRequest 和 CaptureResult。
驗證
如要驗證單色相機的導入方式，請執行下列 CTS 和 VTS 測試。
CTS 測試
testMonochromeCharacteristicsCaptureRequestTestCaptureResultTestStillCaptureTestDngCreatorTest
VTS 測試
getCameraCharacteristicsprocessMultiCaptureRequestPreview
這個頁面中的內容和程式碼範例均受《內容授權》中的授權所規範。Java 與 OpenJDK 是 Oracle 和/或其關係企業的商標或註冊商標。
上次更新時間：2025-07-26 (世界標準時間)。
[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-07-26 (世界標準時間)。"],[],[],null,["# Monochrome cameras\n\nDevices running Android 9 or higher can support\nmonochrome cameras. Android 10\nprovides additional support for the Y8 stream format, monochrome and\nnear-infrared (NIR) color filter array\nstatic metadata, and `DngCreator` functions for monochrome cameras.\n\nWith this capability, device manufacturers can implement a monochrome or\nNIR camera device and reduce memory use by using\nthe Y8 stream format. A monochrome camera can serve as the underlying physical\ncamera of a\n[logical multi-camera device](https://developer.android.com/reference/android/hardware/camera2/CameraMetadata#REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA)\nto achieve better low-light noise characteristics.\n\nImplementation\n--------------\n\n### Hardware requirements\n\nTo implement this feature, your device must have a monochrome camera sensor and\nan image signal processor (ISP) to process the sensor output.\n\n### Implement a monochrome camera\n\nTo advertise a camera device as a monochrome camera, the\n[Camera HAL](/docs/core/camera/camera3) must meet\nthe following requirements:\n\n- `android.sensor.info.colorFilterArray` is set to `MONO` or `NIR`.\n- `BACKWARD_COMPATIBLE` required keys are supported and `MANUAL_POST_PROCESSING` isn't supported.\n- `android.control.awbAvailableModes` only contains `AUTO` and `android.control.awbState` is either `CONVERTED` or `LOCKED` depending on `android.control.awbLock`.\n- `android.colorCorrection.mode`, `android.colorCorrection.transform`, and `android.colorCorrection.gains` aren't in available request and result keys. As a result, the camera device is [`LIMITED`](https://developer.android.com/reference/android/hardware/camera2/CameraMetadata.html#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED).\n- The following color-related static metadata keys aren't present:\n\n - `android.sensor.referenceIlluminant*`\n - `android.sensor.calibrationTransform*`\n - `android.sensor.colorTransform*`\n - `android.sensor.forwardMatrix*`\n - `android.sensor.neutralColorPoint`\n - `android.sensor.greenSplit`\n- All color channels have the same values for the following metadata keys:\n\n - `android.sensor.blackLevelPattern`\n - `android.sensor.dynamicBlackLevel`\n - `android.statistics.lensShadingMap`\n - `android.tonemap.curve`\n- `android.sensor.noiseProfile` has only one color channel.\n\nFor monochrome devices supporting Y8 stream formats, the Camera HAL must support\nswapping `YUV_420_888` formats in mandatory stream combinations (including\nreprocessing) with Y8 formats.\n\nThe following public APIs are used in this feature:\n\n- [Y8 image format](https://developer.android.com/reference/android/graphics/ImageFormat#Y8)\n- [SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_MONO](https://developer.android.com/reference/android/hardware/camera2/CameraMetadata#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_MONO)\n- [SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_NIR](https://developer.android.com/reference/android/hardware/camera2/CameraMetadata#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_NIR)\n- [MONOCHROME camera capability](https://developer.android.com/reference/android/hardware/camera2/CameraMetadata#REQUEST_AVAILABLE_CAPABILITIES_MONOCHROME) (introduced in Android 9)\n\nFor more details on the Camera HAL, see\n[docs.html](https://android.googlesource.com/platform/system/media/+/android16-release/camera/docs/docs.html).\nFor more information on related public APIs, see\n[ImageFormat](https://developer.android.com/reference/android/graphics/ImageFormat),\n[CameraCharacteristics](https://developer.android.com/reference/android/hardware/camera2/CameraCharacteristics),\n[CaptureRequest](https://developer.android.com/reference/android/hardware/camera2/CaptureRequest),\nand\n[CaptureResult](https://developer.android.com/reference/android/hardware/camera2/CaptureResult).\n\nValidation\n----------\n\nTo validate your implementation of a monochrome camera, run the following CTS\nand VTS tests.\n\n### CTS tests\n\n- `testMonochromeCharacteristics`\n- `CaptureRequestTest`\n- `CaptureResultTest`\n- `StillCaptureTest`\n- `DngCreatorTest`\n\n### VTS tests\n\n- `getCameraCharacteristics`\n- `processMultiCaptureRequestPreview`"]]
