本文整理汇总了Python中thunder.rdds.fileio.imagesloader.ImagesLoader.first方法的典型用法代码示例。如果您正苦于以下问题：Python ImagesLoader.first方法的具体用法？Python ImagesLoader.first怎么用？Python ImagesLoader.first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类thunder.rdds.fileio.imagesloader.ImagesLoader的用法示例。
在下文中一共展示了ImagesLoader.first方法的5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: test_fromTif
# 需要导入模块: from thunder.rdds.fileio.imagesloader import ImagesLoader [as 别名]
# 或者: from thunder.rdds.fileio.imagesloader.ImagesLoader import first [as 别名]
def test_fromTif(self):
imagepath = os.path.join(self.testresourcesdir, "singlelayer_tif", "dot1_lzw.tif")
tifimage = ImagesLoader(self.sc).fromTif(imagepath, self.sc)
firsttifimage = tifimage.first()
assert_equals(0, firsttifimage[0], "Key error; expected first image key to be 0, was "+str(firsttifimage[0]))
expectedshape = (70, 75, 4) # 4 channel tif; RGBalpha
assert_true(isinstance(firsttifimage[1], ndarray),
"Value type error; expected first image value to be numpy ndarray, was " +
str(type(firsttifimage[1])))
assert_equals(expectedshape, firsttifimage[1].shape)
assert_equals(248, firsttifimage[1][:, :, 0].flatten().max())
assert_equals(8, firsttifimage[1][:, :, 0].flatten().min())示例2: test_fromPng
# 需要导入模块: from thunder.rdds.fileio.imagesloader import ImagesLoader [as 别名]
# 或者: from thunder.rdds.fileio.imagesloader.ImagesLoader import first [as 别名]
def test_fromPng(self):
imagepath = os.path.join(self.testresourcesdir, "singlelayer_png", "dot1.png")
pngimage = ImagesLoader(self.sc).fromPng(imagepath, self.sc)
firstpngimage = pngimage.first()
assert_equals(0, firstpngimage[0], "Key error; expected first image key to be 0, was "+str(firstpngimage[0]))
expectedshape = (70, 75, 4) # 4 channel png; RGBalpha
assert_true(isinstance(firstpngimage[1], ndarray),
"Value type error; expected first image value to be numpy ndarray, was " +
str(type(firstpngimage[1])))
assert_equals(expectedshape, firstpngimage[1].shape)
assert_almost_equal(0.97, firstpngimage[1][:, :, 0].flatten().max(), places=2)
assert_almost_equal(0.03, firstpngimage[1][:, :, 0].flatten().min(), places=2)示例3: test_fromTif
# 需要导入模块: from thunder.rdds.fileio.imagesloader import ImagesLoader [as 别名]
# 或者: from thunder.rdds.fileio.imagesloader.ImagesLoader import first [as 别名]
def test_fromTif(self):
imagePath = os.path.join(self.testResourcesDir, "singlelayer_tif", "dot1_grey_lzw.tif")
tiffImage = ImagesLoader(self.sc).fromTif(imagePath)
firstTiffImage = tiffImage.first()
assert_equals(0, firstTiffImage[0], "Key error; expected first image key to be 0, was "+str(firstTiffImage[0]))
expectedShape = (70, 75)
assert_true(isinstance(firstTiffImage[1], ndarray),
"Value type error; expected first image value to be numpy ndarray, was " +
str(type(firstTiffImage[1])))
assert_equals(expectedShape, firstTiffImage[1].shape)
assert_equals(expectedShape, tiffImage.dims.count)
assert_equals(239, firstTiffImage[1].ravel().max())
assert_equals(1, firstTiffImage[1].ravel().min())示例4: test_fromPng
# 需要导入模块: from thunder.rdds.fileio.imagesloader import ImagesLoader [as 别名]
# 或者: from thunder.rdds.fileio.imagesloader.ImagesLoader import first [as 别名]
def test_fromPng(self):
imagePath = os.path.join(self.testResourcesDir, "singlelayer_png", "dot1_grey.png")
pngImage = ImagesLoader(self.sc).fromPng(imagePath)
firstPngImage = pngImage.first()
assert_equals(0, firstPngImage[0], "Key error; expected first image key to be 0, was "+str(firstPngImage[0]))
expectedShape = (70, 75)
assert_true(isinstance(firstPngImage[1], ndarray),
"Value type error; expected first image value to be numpy ndarray, was " +
str(type(firstPngImage[1])))
assert_equals(expectedShape, firstPngImage[1].shape)
assert_equals(expectedShape, pngImage.dims.count)
assert_almost_equal(0.937, firstPngImage[1].ravel().max(), places=2) # integer val 239
assert_almost_equal(0.00392, firstPngImage[1].ravel().min(), places=2) # integer val 1示例5: roundTrip
# 需要导入模块: from thunder.rdds.fileio.imagesloader import ImagesLoader [as 别名]
# 或者: from thunder.rdds.fileio.imagesloader.ImagesLoader import first [as 别名]
def roundTrip(images, dtype):
outdir = os.path.join(self.outputdir, "binary-images-" + dtype)
images.astype(dtype).saveAsBinaryImages(outdir)
newimages = ImagesLoader(self.sc).fromStack(outdir, ext="bin")
array_equal(images.first()[1], newimages.first()[1])