Adding upstream version 1.2.2.upstream/1.2.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/trace/README b/src/trace/README
new file mode 100644
index 0000000..f436aa0
--- /dev/null
+++ b/src/trace/README
@@ -0,0 +1,18 @@
+
+This directory contains code for converting bitmap images to vector images.
+The subdirectories contain code for the three tracers used in Inkscape: potrace
+(external dependency), autotrace, and libdepixelize (currently in src/3rdparty).
+
+
+To do:
+
+* Think about conceptually changing how the tracing works: Ideally, it should
+  be three steps clearly separated:
+  1/ Preprocessing (color reduction, blurring, background removing, image
+    inversion...)
+  2/ Tracing the preprocessed image, using some tracing engine
+  3/ Post-processing (suppressing speckles, optimizing paths...)
+  
+  The main problem is that the tracing engine sometimes *also* does 1 and 3, so
+  there is some discussion to have whether this can be done.
+