classify: Remove deprecated method ExtractIntFeat (#1422)

It was deprecated with commit 99edf4c four years ago.

Signed-off-by: Stefan Weil <[email protected]>

classify/intfx.cpp

@@ -487,47 +487,3 @@ void Classify::ExtractFeatures(const TBLOB& blob,
 }
 
 }  // namespace tesseract
-
-
-/*--------------------------------------------------------------------------*/
-// Extract a set of standard-sized features from Blobs and write them out in
-// two formats: baseline normalized and character normalized.
-//
-// We presume the Blobs are already scaled so that x-height=128 units
-//
-// Standard Features:
-//   We take all outline segments longer than 7 units and chop them into
-//   standard-sized segments of approximately 13 = (64 / 5) units.
-//   When writing these features out, we output their center and angle as
-//   measured counterclockwise from the vector <-1, 0>
-//
-// Baseline Normalized Output:
-//   We center the grapheme by aligning the x-coordinate of its centroid with
-//   x=0 and subtracting 128 from the y-coordinate.
-//
-// Character Normalized Output:
-//   We align the grapheme's centroid at the origin and scale it asymmetrically
-//   in x and y so that the result is vaguely square.
-//
-// Deprecated! Prefer tesseract::Classify::ExtractFeatures instead.
-bool ExtractIntFeat(const TBLOB& blob,
-                    bool nonlinear_norm,
-                    INT_FEATURE_ARRAY baseline_features,
-                    INT_FEATURE_ARRAY charnorm_features,
-                    INT_FX_RESULT_STRUCT* results) {
-  GenericVector<INT_FEATURE_STRUCT> bl_features;
-  GenericVector<INT_FEATURE_STRUCT> cn_features;
-  tesseract::Classify::ExtractFeatures(blob, nonlinear_norm,
-                                       &bl_features, &cn_features, results,
-                                       NULL);
-  if (bl_features.empty() || cn_features.empty() ||
-      bl_features.size() > MAX_NUM_INT_FEATURES ||
-      cn_features.size() > MAX_NUM_INT_FEATURES) {
-    return false;  // Feature extraction failed.
-  }
-  memcpy(baseline_features, &bl_features[0],
-         bl_features.size() * sizeof(bl_features[0]));
-  memcpy(charnorm_features, &cn_features[0],
-         cn_features.size() * sizeof(cn_features[0]));
-  return true;
-}

classify/intfx.h

@@ -65,11 +65,4 @@ namespace tesseract {
       GenericVector<INT_FEATURE_STRUCT>* bl_features);
 }
 
-// Deprecated! Prefer tesseract::Classify::ExtractFeatures instead.
-bool ExtractIntFeat(const TBLOB& blob,
-                    bool nonlinear_norm,
-                    INT_FEATURE_ARRAY BLFeat,
-                    INT_FEATURE_ARRAY CNFeat,
-                    INT_FX_RESULT_STRUCT* Results);
-
 #endif