Final teak to pixFindBaselinesGen() for Issue #766

* remove components up to 3 pixels high (instead of up to 2) at 4x reduction

prog/baseline_reg.c

@@ -104,7 +104,8 @@ L_REGPARAMS  *rp;
     numaDestroy(&na);
     ptaDestroy(&pta);
 
-        /* Another test for baselines, with dark image */
+        /* Another test for baselines, with dark image.
+         * With minw = 60, the number at the top of the page is skipped. */
     pixadb = pixaCreate(6);
     pixs = pixRead("pedante.079.jpg");  /* 75 ppi */
     pix1 = pixRemoveBorder(pixs, 30);
@@ -120,7 +121,7 @@ L_REGPARAMS  *rp;
     pixDestroy(&pix3);
     pixDestroy(&pix4);
     pix1 = pixDeskew(pix5, 2);
-    na = pixFindBaselines(pix1, &pta, pixadb);
+    na = pixFindBaselinesGen(pix1, 50, &pta, pixadb);
     regTestCompareValues(rp, 35, numaGetCount(na), 0);  /* 9 */
     pix2 = pixaDisplayTiledInRows(pixadb, 32, 1500, 1.0, 0, 30, 2);
     regTestWritePixAndCheck(rp, pix2, IFF_PNG);  /* 10 */

src/baseline.c

@@ -301,7 +301,7 @@ PTA       *pta;
         found = FALSE;
         for (j = 0; j < nbox; j++) {
             boxaGetBoxGeometry(boxa3, j, &bx, &by, &bw, &bh);
-            if (bh > 8 && L_ABS(locval - (by + bh)) <= 24) {
+            if (bh > 12 && L_ABS(locval - (by + bh)) <= 24) {
                 ptaAddPt(pta, bx, locval);
                 ptaAddPt(pta, bx + bw, locval);
                 found = TRUE;