antialiasing text conversion: canonimage has 0..AAMAXVAL

[ypp-sc-tools.web-live.git] / pctb / ocr.h

diff --git a/pctb/ocr.h b/pctb/ocr.h
index 97a5c66997f16efa2abdf586979e21ffc5c9b1be..5269723b50262494cb951189441cc77a25ed4351 100644 (file)
--- a/pctb/ocr.h
+++ b/pctb/ocr.h
@@ -32,13 +32,18 @@
 #include "common.h"
 
 
+#define AADEPTH 3
+#define AAMAXVAL ((1<<AADEPTH)-1)
+
+
 typedef uint32_t Pixcol;
 #define PSPIXCOL(priscan) priscan##32
 
 typedef struct {
   const char *s; /* valid until next call to ocr() */
   int l,r; /* column numbers */
-  unsigned ctxmap; /* match context index */
+  int match; /* match context index */
+  unsigned ctxmap; /* possible match contexts */
 } OcrResultGlyph;
 
 
@@ -50,6 +55,7 @@ const char *ocr_celltype_name(OcrCellType ct);
 
 typedef struct OcrReader OcrReader;
 OcrReader *ocr_init(int h);
+void ocr_showcharsets(void);
 
 OcrResultGlyph *ocr(OcrReader *rd, OcrCellType, int w, Pixcol cols[]);
   /* return value is array terminated by {0,-1,-1}