A noise suppression method using multiple digital images performs a de-noising process with the multiple digital images. At least some of the various embodiments are computer-readable mediums storing a program that, when executed by a processor, causes the processor to read data from a well log, and perform a quality control analysis on the data. At least one graphical program node may be associated with the structure. These protein hydrolysates can be used in the preparation of food compositions, wherein these protein hydrolysates provide for novel and unexpected flavours.