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222 lines
6.6 KiB
Python
222 lines
6.6 KiB
Python
4 weeks ago
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""":mod:`wand.cdefs.structures` --- MagickWand C-Structures
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.. versionadded:: 0.5.0
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"""
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from ctypes import POINTER, Structure, c_bool, c_double, c_int, c_size_t
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from wand.cdefs.wandtypes import c_magick_real_t, c_magick_size_t, c_ssize_t
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__all__ = ('AffineMatrix', 'CCMaxMetrics', 'CCObjectInfo', 'CCObjectInfo70A',
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'CCObjectInfo710', 'ChannelFeature', 'GeometryInfo', 'KernelInfo',
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'MagickPixelPacket', 'PixelInfo', 'PointInfo', 'RectangleInfo')
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class AffineMatrix(Structure):
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_fields_ = [('sx', c_double),
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('rx', c_double),
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('ry', c_double),
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('sy', c_double),
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('tx', c_double),
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('ty', c_double)]
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class ChannelFeature(Structure):
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"""
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/*
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Haralick texture features.
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*/
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typedef struct _ChannelFeatures
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{
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double
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angular_second_moment[4],
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contrast[4],
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correlation[4],
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variance_sum_of_squares[4],
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inverse_difference_moment[4],
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sum_average[4],
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sum_variance[4],
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sum_entropy[4],
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entropy[4],
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difference_variance[4],
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difference_entropy[4],
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measure_of_correlation_1[4],
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measure_of_correlation_2[4],
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maximum_correlation_coefficient[4];
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} ChannelFeatures;
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"""
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_fields_ = [('angular_second_moment', c_double * 4),
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('contrast', c_double * 4),
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('correlation', c_double * 4),
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('variance_sum_of_squares', c_double * 4),
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('inverse_difference_moment', c_double * 4),
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('sum_average', c_double * 4),
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('sum_variance', c_double * 4),
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('sum_entropy', c_double * 4),
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('entropy', c_double * 4),
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('difference_variance', c_double * 4),
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('difference_entropy', c_double * 4),
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('measure_of_correlation_1', c_double * 4),
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('measure_of_correlation_2', c_double * 4),
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('maximum_correlation_coefficient', c_double * 4)]
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class GeometryInfo(Structure):
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NoValue = 0x0000
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XValue = 0x0001
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XiValue = 0x0001
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YValue = 0x0002
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PsiValue = 0x0002
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WidthValue = 0x0004
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RhoValue = 0x0004
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HeightValue = 0x0008
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SigmaValue = 0x0008
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ChiValue = 0x0010
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XiNegative = 0x0020
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XNegative = 0x0020
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PsiNegative = 0x0040
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YNegative = 0x0040
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ChiNegative = 0x0080
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PercentValue = 0x1000
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AspectValue = 0x2000
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NormalizeValue = 0x2000
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LessValue = 0x4000
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GreaterValue = 0x8000
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MinimumValue = 0x10000
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CorrelateNormalizeValue = 0x10000
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AreaValue = 0x20000
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DecimalValue = 0x40000
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SeparatorValue = 0x80000
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AspectRatioValue = 0x100000
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AllValues = 0x7fffffff
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_fields_ = [('rho', c_double),
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('sigma', c_double),
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('xi', c_double),
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('psi', c_double),
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('chi', c_double)]
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class KernelInfo(Structure):
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pass
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KernelInfo._fields_ = [('type', c_int),
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('width', c_size_t),
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('height', c_size_t),
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('x', c_ssize_t),
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('y', c_ssize_t),
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('values', POINTER(c_double)),
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('minimum', c_double),
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('maximum', c_double),
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('negative_range', c_double),
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('positive_range', c_double),
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('angle', c_double),
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('next', POINTER(KernelInfo)),
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('signature', c_size_t)]
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class MagickPixelPacket(Structure):
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_fields_ = [('storage_class', c_int),
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('colorspace', c_int),
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('matte', c_int),
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('fuzz', c_double),
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('depth', c_size_t),
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('red', c_magick_real_t),
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('green', c_magick_real_t),
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('blue', c_magick_real_t),
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('opacity', c_magick_real_t),
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('index', c_magick_real_t)]
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class OffsetInfo(Structure):
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_fields_ = [('x', c_double),
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('y', c_double)]
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class PixelInfo(Structure):
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_fields_ = [('storage_class', c_int),
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('colorspace', c_int),
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('alpha_trait', c_int),
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('fuzz', c_double),
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('depth', c_size_t),
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('count', c_magick_size_t),
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('red', c_magick_real_t),
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('green', c_magick_real_t),
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('blue', c_magick_real_t),
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('black', c_magick_real_t),
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('alpha', c_magick_real_t),
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('index', c_magick_real_t)]
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class PointInfo(Structure):
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_fields_ = [('x', c_double),
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('y', c_double)]
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class RectangleInfo(Structure):
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_fields_ = [('width', c_size_t),
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('height', c_size_t),
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('x', c_ssize_t),
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('y', c_ssize_t)]
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class CCObjectInfo(Structure):
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_fields_ = [('_id', c_ssize_t),
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('bounding_box', RectangleInfo),
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('color', PixelInfo),
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('centroid', PointInfo),
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('area', c_double),
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('census', c_double)]
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CCMaxMetrics = 16
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class CCObjectInfo70A(Structure):
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CCMaxMetrics = CCMaxMetrics
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_fields_ = [('_id', c_ssize_t),
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('bounding_box', RectangleInfo),
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('color', PixelInfo),
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('centroid', PointInfo),
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('area', c_double),
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('census', c_double),
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('merge', c_bool),
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('metric', c_double * CCMaxMetrics)]
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class CCObjectInfo710(Structure):
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CCMaxMetrics = CCMaxMetrics
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_fields_ = [('_id', c_ssize_t),
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('bounding_box', RectangleInfo),
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('color', PixelInfo),
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('centroid', PointInfo),
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('area', c_double),
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('census', c_double),
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('merge', c_bool),
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('metric', c_double * CCMaxMetrics),
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('key', c_ssize_t)]
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# All this will change with IM7, so let's not implement this just yet.
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#
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# class ImageChannelStatistics(Structure):
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# _fields_ = [('maximum', c_double),
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# ('minimum', c_double),
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# ('mean', c_double),
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# ('standard_deviation', c_double),
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# ('variance', c_double),
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# ('kurtosis', c_double),
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# ('skewness', c_double)]
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#
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# class ImageStatistics(Structure):
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# _fields_ = [('red', ImageChannelStatistics),
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# ('green', ImageChannelStatistics),
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# ('blue', ImageChannelStatistics),
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# ('opacity', ImageChannelStatistics)]
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