Matrix to Image Need Changes

[satriahrh]

We have following result for time profiling:

ID 0.001_11_7_9_1_1_2
ENCRYPTION
transform.file_to_bytes                     0.0000805855s 0.063%
transform.pad_bytes                         0.0000362396s 0.028%
RT.encrypt                                  0.0417234898s 32.394%
transform.compile_bytes_to_pixels           0.0001916885s 0.149%
transform.compile_pixels_to_matrix          0.0001032352s 0.080%
ACM.encrypt                                 0.0008668900s 0.673%
transform.matrix_to_image                   0.0633673668s 49.198%
Image.save                                  0.0224308968s 17.415%

DECRYPTION
Image.open                                  0.0000782013s 0.208%
transform.image_to_matrix                   0.0009226799s 2.458%
ACM.decrypt                                 0.0011425018s 3.044%
transform.decompile_matrix_to_pixels        0.0000567436s 0.151%
transform.decompile_pixels_to_bytes         0.0002787113s 0.742%
RT.decrypt                                  0.0349469185s 93.097%
transform.strip_bytes                       0.0000090599s 0.024%
transform.bytes_to_file                     0.0001034737s 0.276%

transform.matrix_to_image seems to have bad performance that we need to somehow change our implementation. Our proposed solution is to move image transformation before doing ACM.