diff options
| author | Joe Rayhawk <jrayhawk@freedesktop.org> | 2013-05-13 17:53:47 -0700 |
|---|---|---|
| committer | Joe Rayhawk <jrayhawk@freedesktop.org> | 2013-05-13 17:53:47 -0700 |
| commit | 295e38efdf86e51fcef048eae5bd18fca4468c7d (patch) | |
| tree | 681b4a1d301d942dba876f27668715a69631d00a | |
| parent | a4c61773ec114c01dcdaac09c92602dbd82abfa5 (diff) | |
| parent | 343c5ebee850b103f69c49b414015946c6923c76 (diff) | |
moin2iki: Importing Moin history for page Lossless_JPEG
| -rw-r--r-- | Lossless_JPEG.moin | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Lossless_JPEG.moin b/Lossless_JPEG.moin new file mode 100644 index 0000000..7506870 --- /dev/null +++ b/Lossless_JPEG.moin @@ -0,0 +1,13 @@ += Lossless JPEG =
+
+Huffman compression applied to the bits.
+
+It is used by [[Canon_CR2]], [[Kodak_DCR]] and [[Adobe DNG]]
+
+ * ljpeg seems to be the only C reference implementation, and according the le JPEG-FAQ has bugs with 16-bits.
+
+ * Adobe DNG SDK seems to use an adaptation of the former, in C++. To bad the license isn't GPL compatible.
+
+ * [[https://jrawio.dev.java.net/|jrawio]] in Java has an implementation that seems to work. Only RC5 is GPL compatible as past version are under the Apache 2.0 license.
+
+ * dcraw also implements it.
|