Modality Look up table (MLUT) - When a CT image is acquired the data present in the image is manufacturer dependent values, in order to convert this data to Hounsfield values Modality LUT is applied.
MLUT is applied using rescale intercept & rescale slope values present in the DICOM image. Following is the equation for it:
data[pixelIndex] = data[pixelIndex] * rescale_slope + rescale_intercept
rescale slope is represented by DICOM tag (0028, 1052)
rescale intercept is represented by DICOM tag (0028,1053)
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