private static LutValueRange SyncMinMaxValues(IComposableLut[] luts, int bitsStored, bool isSigned)
{
var range = new LutValueRange();
luts[0].MinInputValue = range.MinInputValue = DicomPixelData.GetMinPixelValue(bitsStored, isSigned);
luts[0].MaxInputValue = range.MaxInputValue = DicomPixelData.GetMaxPixelValue(bitsStored, isSigned);
var lutCount = luts.Length;
for (var j = 1; j < lutCount; ++j)
{
luts[j].MinInputValue = luts[j - 1].MinOutputValue;
luts[j].MaxInputValue = luts[j - 1].MaxOutputValue;
}
range.MinOutputValue = (int)Math.Round(luts[lutCount - 1].MinOutputValue);
range.MaxOutputValue = (int)Math.Round(luts[lutCount - 1].MaxOutputValue);
return(range);
}
private static LutValueRange SyncMinMaxValues(IComposableLut[] luts, int bitsStored, bool isSigned)
{
var range = new LutValueRange();
luts[0].MinInputValue = range.MinInputValue = DicomPixelData.GetMinPixelValue(bitsStored, isSigned);
luts[0].MaxInputValue = range.MaxInputValue = DicomPixelData.GetMaxPixelValue(bitsStored, isSigned);
var lutCount = luts.Length;
for (var j = 1; j < lutCount; ++j)
{
luts[j].MinInputValue = luts[j - 1].MinOutputValue;
luts[j].MaxInputValue = luts[j - 1].MaxOutputValue;
}
range.MinOutputValue = (int) Math.Round(luts[lutCount - 1].MinOutputValue);
range.MaxOutputValue = (int) Math.Round(luts[lutCount - 1].MaxOutputValue);
return range;
}
private static void AssertComposedLut(IComposableLut[] luts, ComposedLut composedLut, LutValueRange lutRange)
{
Assert.AreEqual(lutRange.MinInputValue, composedLut.MinInputValue, "MinInputValue");
Assert.AreEqual(lutRange.MaxInputValue, composedLut.MaxInputValue, "MaxInputValue");
Assert.AreEqual(lutRange.MinOutputValue, composedLut.MinOutputValue, "MinOutputValue");
Assert.AreEqual(lutRange.MaxOutputValue, composedLut.MaxOutputValue, "MaxOutputValue");
var data = composedLut.Data;
Assert.IsNotNull(data, "Data");
var lutCount = luts.Length;
for (var i = -65536; i < 65535; ++i)
{
double value = i;
for (var j = 0; j < lutCount; ++j)
value = luts[j][value];
var expectedValue = (int) Math.Round(value);
Assert.AreEqual(expectedValue, composedLut[i], "LUT @{0}", i);
if (i >= lutRange.MinInputValue && i <= lutRange.MaxInputValue)
{
Assert.AreEqual(expectedValue, data[i - lutRange.MinInputValue], "Data @{0} (Value {1})", i - lutRange.MinInputValue, i);
}
}
}
private static void AssertComposedLut(IComposableLut[] luts, ComposedLut composedLut, LutValueRange lutRange)
{
Assert.AreEqual(lutRange.MinInputValue, composedLut.MinInputValue, "MinInputValue");
Assert.AreEqual(lutRange.MaxInputValue, composedLut.MaxInputValue, "MaxInputValue");
Assert.AreEqual(lutRange.MinOutputValue, composedLut.MinOutputValue, "MinOutputValue");
Assert.AreEqual(lutRange.MaxOutputValue, composedLut.MaxOutputValue, "MaxOutputValue");
var data = composedLut.Data;
Assert.IsNotNull(data, "Data");
var lutCount = luts.Length;
for (var i = -65536; i < 65535; ++i)
{
double value = i;
for (var j = 0; j < lutCount; ++j)
{
value = luts[j][value];
}
var expectedValue = (int)Math.Round(value);
Assert.AreEqual(expectedValue, composedLut[i], "LUT @{0}", i);
if (i >= lutRange.MinInputValue && i <= lutRange.MaxInputValue)
{
Assert.AreEqual(expectedValue, data[i - lutRange.MinInputValue], "Data @{0} (Value {1})", i - lutRange.MinInputValue, i);
}
}
}
