// Sets up the built-in DENORM and normalizes the blob in-place.
// For parameters see DENORM::SetupNormalization, plus the inverse flag for
// this blob and the Pix for the full image.
void TBLOB::Normalize(const BLOCK* block,
const FCOORD* rotation,
const DENORM* predecessor,
float x_origin, float y_origin,
float x_scale, float y_scale,
float final_xshift, float final_yshift,
bool inverse, Pix* pix) {
denorm_.SetupNormalization(block, rotation, predecessor, x_origin, y_origin,
x_scale, y_scale, final_xshift, final_yshift);
denorm_.set_inverse(inverse);
denorm_.set_pix(pix);
// TODO(rays) outline->Normalize is more accurate, but breaks tests due
// the changes it makes. Reinstate this code with a retraining.
// The reason this change is troublesome is that it normalizes for the
// baseline value computed independently at each x-coord. If the baseline
// is not horizontal, this introduces shear into the normalized blob, which
// is useful on the rare occasions that the baseline is really curved, but
// the baselines need to be stabilized the rest of the time.
#if 0
for (TESSLINE* outline = outlines; outline != NULL; outline = outline->next) {
outline->Normalize(denorm_);
}
#else
denorm_.LocalNormBlob(this);
#endif
}
// Normalize in-place using the DENORM.
void TBLOB::Normalize(const DENORM& denorm) {
// TODO(rays) outline->Normalize is more accurate, but breaks tests due
// the changes it makes. Reinstate this code with a retraining.
#if 1
for (TESSLINE* outline = outlines; outline != NULL; outline = outline->next) {
outline->Normalize(denorm);
}
#else
denorm.LocalNormBlob(this);
#endif
}
