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Python Image.getFPNumpy方法代码示例

本文整理汇总了Python中SimpleCV.ImageClass.Image.getFPNumpy方法的典型用法代码示例。如果您正苦于以下问题:Python Image.getFPNumpy方法的具体用法?Python Image.getFPNumpy怎么用?Python Image.getFPNumpy使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在SimpleCV.ImageClass.Image的用法示例。


在下文中一共展示了Image.getFPNumpy方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: RunningSegmentation

# 需要导入模块: from SimpleCV.ImageClass import Image [as 别名]
# 或者: from SimpleCV.ImageClass.Image import getFPNumpy [as 别名]
class RunningSegmentation(SegmentationBase):
    """
    RunningSegmentation performs segmentation using a running background model.
    This model uses an accumulator which performs a running average of previous frames
    where:
    accumulator = ((1-alpha)input_image)+((alpha)accumulator)
    """

    mError = False
    mAlpha = 0.1
    mThresh = 10
    mModelImg = None
    mDiffImg = None
    mCurrImg = None
    mBlobMaker = None
    mGrayOnly = True
    mReady = False

    def __init__(self, alpha=0.7, thresh=(20,20,20)):
        """
        Create an running background difference.
        alpha - the update weighting where:
        accumulator = ((1-alpha)input_image)+((alpha)accumulator)

        threshold - the foreground background difference threshold.
        """
        self.mError = False
        self.mReady = False
        self.mAlpha = alpha
        self.mThresh = thresh
        self.mModelImg = None
        self.mDiffImg = None
        self.mColorImg = None
        self.mBlobMaker = BlobMaker()

    def addImage(self, img):
        """
        Add a single image to the segmentation algorithm
        """
        if( img is None ):
            return

        self.mColorImg = img
        if( self.mModelImg == None ):
            self.mModelImg = Image(np.zeros((img.height, img.width, 3)).astype(np.float32))
            self.mDiffImg = Image(np.zeros((img.height, img.width, 3)).astype(np.float32))

        else:
            # do the difference
            self.mDiffImg = Image(cv2.absdiff(self.mModelImg.getNumpy(), self.mDiffImg.getNumpy()))
            #update the model
            npimg = np.zeros((img.height, img.width, 3)).astype(np.float32)
            npimg = self.mModelImg.getFPNumpy()
            cv2.accumulateWeighted(img.getFPNumpy(), npimg, self.mAlpha)
            print npimg
            self.mModelImg = Image(npimg)
            #cv.RunningAvg(img.getFPMatrix(),self.mModelImg.getBitmap(),self.mAlpha)
            self.mReady = True
        return


    def isReady(self):
        """
        Returns true if the camera has a segmented image ready.
        """
        return self.mReady


    def isError(self):
        """
        Returns true if the segmentation system has detected an error.
        Eventually we'll consruct a syntax of errors so this becomes
        more expressive
        """
        return self.mError #need to make a generic error checker

    def resetError(self):
        """
        Clear the previous error.
        """
        self.mError = false
        return

    def reset(self):
        """
        Perform a reset of the segmentation systems underlying data.
        """
        self.mModelImg = None
        self.mDiffImg = None

    def getRawImage(self):
        """
        Return the segmented image with white representing the foreground
        and black the background.
        """
        return self._floatToInt(self.mDiffImg)

    def getSegmentedImage(self, whiteFG=True):
        """
        Return the segmented image with white representing the foreground
#.........这里部分代码省略.........
开发者ID:Betrezen,项目名称:SimpleCV2,代码行数:103,代码来源:RunningSegmentation.py


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