Python bytescale示例

示例#1

    def getImage(self, tileData):
        signal, alpha = tileData.getSmoothed()

        signal = self.scaleAndClip(signal, self.colorRange)

        rgba = self.rgba
        rgba = matplotlib.cm.jet(signal, bytes=True)  # pylint: disable=E1101
        rgba[:, :, 3] = pilutil.bytescale(alpha, cmin=0.0, cmax=1.0)
        rgbaT = rgba.transpose((1, 0, 2)).copy()
        return Image.frombuffer('RGBA', (N, N), rgbaT, 'raw', 'RGBA', 0, 1)

示例#2

文件： tileIndex.py 项目： xgds/xgds_plot

    def getImage(self, tileData):
        signal, alpha = tileData.getSmoothed()

        signal = self.scaleAndClip(signal, self.colorRange)

        rgba = self.rgba
        rgba = matplotlib.cm.jet(signal, bytes=True)  # pylint: disable=E1101
        rgba[:, :, 3] = pilutil.bytescale(alpha, cmin=0.0, cmax=1.0)
        rgbaT = rgba.transpose((1, 0, 2)).copy()
        return Image.frombuffer('RGBA', (N, N), rgbaT,
                                'raw', 'RGBA', 0, 1)

示例#3

文件： test_pilutil.py 项目： dagss/private-scipy-refactor

 def test_bytescale(self):
     x = np.array([0,1,2],np.uint8)
     y = np.array([0,1,2])
     assert_equal(pilutil.bytescale(x),x)
     assert_equal(pilutil.bytescale(y),[0,127,255])

示例#4

 def test_bytescale(self):
     x = np.array([0,1,2],np.uint8)
     y = np.array([0,1,2])
     assert_equal(pilutil.bytescale(x),x)
     assert_equal(pilutil.bytescale(y),[0,127,255])

示例#5

文件： benchmark.py 项目： SemanticsOS/smc.freeimage

for name, flt in filters:
    start = time()
    for i in xrange(RESIZE_COUNT):
        img.resize(width, height, flt)
    end = time() - start
    print " - resize %0.3f sec (%s)" % (end, name)

# numpy
if HAS_NUMPY:
    tiff = Image(TIFF)
    start = time()
    for i in xrange(RW_COUNT):
        arr = asarray(tiff)
        # change last BGR -> RGB
        arr = arr[..., ::-1]
        bytescale(arr, 64, 192)
    end = time() - start
    print " - tiff numpy.asarray() with bytescale() %0.3f sec" % end

    start = time()
    for i in xrange(RW_COUNT):
        tiff = Image(TIFF)
        arr = asarray(tiff)
        arr = arr[..., ::-1]
        bytescale(arr, 64, 192)
    end = time() - start
    print " - tiff load + numpy.asarray() with bytescale() %0.3f sec" % end

# -------------------------------------------------------------------
# PIL load
hdr = "PIL %s (with standard libjpeg)" % PIL_VERSION

示例#6

文件： benchmark.py 项目： fdotta/smc.freeimage

for name, flt in filters:
    start = time()
    for i in xrange(RESIZE_COUNT):
        img.resize(width, height, flt)
    end = time() - start
    print " - resize %0.3f sec (%s)" % (end, name)

# numpy
if HAS_NUMPY:
    tiff = Image(TIFF)
    start = time()
    for i in xrange(RW_COUNT):
        arr = asarray(tiff)
        # change last BGR -> RGB
        arr = arr[..., ::-1]
        bytescale(arr, 64, 192)
    end = time() - start
    print " - tiff numpy.asarray() with bytescale() %0.3f sec" % end

    start = time()
    for i in xrange(RW_COUNT):
        tiff = Image(TIFF)
        arr = asarray(tiff)
        arr = arr[..., ::-1]
        bytescale(arr, 64, 192)
    end = time() - start
    print " - tiff load + numpy.asarray() with bytescale() %0.3f sec" % end

# -------------------------------------------------------------------
# PIL load
hdr = "PIL %s (with standard libjpeg)" % PIL_VERSION