def convert_to_log(self, incoming_image):
self.transform_offset = 0.0
transform_image = incoming_image
image_min = incoming_image.min()
if image_min <= 0.0:
image_min = -1.0 * image_min
self.transform_offset = 0.001 + image_min
transform_image = self.transform_offset + incoming_image
scale_min = transform_image.min()
scale_max = transform_image.max()
if scale_min == scale_max:
scale_min = scale_min - 0.5 * scale_min
scale_max = scale_max + 0.5 * scale_min
self.dimap = ImageScaler(1, 256, scale_min, scale_max, True)
_dprint(3, 'doing log transform of ', transform_image)
temp_image = self.dimap.iTransform(transform_image)
_dprint(3, 'log transformed image ', temp_image)
return temp_image
def setData(self, data_array, xScale=None, yScale=None):
'*** setting data **** '
self.complex = False
shape = data_array.shape
_dprint(3, 'array shape is ', shape)
shape0 = shape[0]
if data_array.dtype == numpy.complex64 or data_array.dtype == numpy.complex128:
self.complex = True
shape0 = 2 * shape[0]
if xScale:
self.xMap = ImageScaler(0, shape0 - 1, xScale[0], xScale[1])
self.xMap_draw = ImageScaler(0, shape0 - 1, xScale[0], xScale[1])
temp_scale = (xScale[0], xScale[1])
self.plot.setAxisScale(Qwt.QwtPlot.xBottom, *temp_scale)
_dprint(3, 'xScale is ', xScale)
else:
self.xMap = ImageScaler(0, shape0, 0, shape0)
self.xMap_draw = ImageScaler(0, shape0, 0, shape0)
self.plot.setAxisScale(Qwt.QwtPlot.xBottom, 0, shape0)
if yScale:
_dprint(3, 'yScale is ', yScale)
_dprint(3, 'self.log_y_scale is ', self.log_y_scale)
self.yMap = ImageScaler(0, shape[1] - 1, yScale[0], yScale[1],
self.log_y_scale)
self.yMap_draw = ImageScaler(0, shape[1] - 1, yScale[0], yScale[1],
self.log_y_scale)
temp_scale = (yScale[0], yScale[1])
_dprint(3, 'Called setAxisScale(Qwt.QwtPlot.yLeft) with ',
temp_scale)
self.plot.setAxisScale(Qwt.QwtPlot.yLeft, *temp_scale)
else:
self.yMap = ImageScaler(0, shape[1], 0, shape[1])
self.yMap_draw = ImageScaler(0, shape[1], 0, shape[1])
self.plot.setAxisScale(Qwt.QwtPlot.yLeft, 0, shape[1])
if self.display_type == "brentjens":
self.setBrentjensImage(data_array)
else:
self.setImage(data_array)
self.raw_image = data_array
