filename | 应保存照片的位置。文件名末尾的文件扩展名必须为 png 或 jpg。 |
fileOutputFormat | 应使用的编码格式。 |
onCapturedPhotoToDiskCallback | 在照片被保存到磁盘中时调用。 |
onCapturedPhotoToMemoryCallback | 在照片被复制到目标纹理中时调用。 |
使用网络摄像机异步捕捉照片并将照片存储在磁盘上。
可通过两种方式使用此方法。
您可以使用此方法通过网络摄像机直接将照片捕捉到 CPU 内存中。然后,您可以将图像数据
应用到纹理中,以便在 Unity 中使用,或者将图像数据传递到外部插件。直接将照片捕捉到内存中时,
您还将看到空间信息,并通过这些信息了解拍摄照片时所处的空间位置。
您还可以直接将照片捕捉到磁盘中,保存为 png 或 jpg。
将图像保存为 JPEG 格式时,系统会将 EXIF 元数据编码到捕捉的图像中。使用 BGRA32
和 NV12 像素格式时,您可以将捕捉的图像保存为 JPEG 格式。使用 BGRA32 像素格式时,则只能将捕捉的图像保存为 PNG 格式。
此示例将使用网络摄像机捕捉图像,并将图像保存到磁盘上。
using UnityEngine; using System.Collections; using System.Linq; using UnityEngine.Windows.WebCam;
public class PhotoCaptureToDiskExample : MonoBehaviour { PhotoCapture photoCaptureObject = null;
static readonly int TotalImagesToCapture = 3; int capturedImageCount = 0;
// Use this for initialization void Start() { Resolution cameraResolution = PhotoCapture.SupportedResolutions.OrderByDescending((res) => res.width * res.height).First(); Texture2D targetTexture = new Texture2D(cameraResolution.width, cameraResolution.height);
PhotoCapture.CreateAsync(false, delegate(PhotoCapture captureObject) { Debug.Log("Created PhotoCapture Object"); photoCaptureObject = captureObject;
CameraParameters c = new CameraParameters(); c.hologramOpacity = 0.0f; c.cameraResolutionWidth = targetTexture.width; c.cameraResolutionHeight = targetTexture.height; c.pixelFormat = CapturePixelFormat.BGRA32;
captureObject.StartPhotoModeAsync(c, delegate(PhotoCapture.PhotoCaptureResult result) { Debug.Log("Started Photo Capture Mode"); TakePicture(); }); }); }
void OnCapturedPhotoToDisk(PhotoCapture.PhotoCaptureResult result) { Debug.Log("Saved Picture To Disk!");
if (capturedImageCount < TotalImagesToCapture) { TakePicture(); } else { photoCaptureObject.StopPhotoModeAsync(OnStoppedPhotoMode); } }
void TakePicture() { capturedImageCount++; Debug.Log(string.Format("Taking Picture ({0}/{1})...", capturedImageCount, TotalImagesToCapture)); string filename = string.Format(@"CapturedImage{0}.jpg", capturedImageCount); string filePath = System.IO.Path.Combine(Application.persistentDataPath, filename);
photoCaptureObject.TakePhotoAsync(filePath, PhotoCaptureFileOutputFormat.JPG, OnCapturedPhotoToDisk); }
void OnStoppedPhotoMode(PhotoCapture.PhotoCaptureResult result) { photoCaptureObject.Dispose(); photoCaptureObject = null;
Debug.Log("Captured images have been saved at the following path."); Debug.Log(Application.persistentDataPath); } }
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