New objectives.

README.md

@@ -13,15 +13,17 @@
   - [x] LZMA (7-zip)
   - [x] Add *level* CLI option to specify compression level for above algorithms
   - [x] Add CSV writer, which will write test results to file and test function taking folder with test files to parse.
-- **DEADLINE 04.03.2019**
 - [x] Describe what is compression ratio, how are we calculating it.
 - [x] Write about Z-Curve order, plot Z-Curve comparsion with normal order.
 - [x] Plot/into tables, BPP (Bits Per Pixel), Compression throughput (MB/s).
 - [x] Plot how are different frames compressed, x axis -> frame, y axis -> compression ratio
-- [ ] Benchmark B^3D cuda library
-- [ ] Look at *Image difference*
-  - Negative values can be mapped to odd/even numbers. But the difference must be saved in more than one byte.
-  - Save difference in different type than byte (`short`, `uint`, `ulong`)
+- **DEADLINE 18.03.2019**
+- [ ] Look at *Image difference* (*Negative values can be mapped to odd/even numbers. But the difference must be saved in more than one byte.*)
+    - Things we have tested so far: short-short=int, mapping int to ushort, results are not better
+    - [ ] Try Z-Order on ushort mapped ints.
+    - [ ] Try raw byte difference, find if it can be mapped to 1 or 2 bytes
+- [ ] Benchmark B3D cuda library
+    - Problems with building, `cuda` files are probably compiled with g++ instead of nvcc?
 
 
 ## CZI parser TODO list