mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-11 15:09:03 +08:00
4523ce9f7d
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@526 d0cd1f9f-072b-0410-8dd7-cf729c803f20
103 lines
5.6 KiB
C
103 lines
5.6 KiB
C
/**********************************************************************
|
|
* File: imgs.h (Formerly images.h)
|
|
* Description: Header file for IMAGE member functions.
|
|
* Author: Ray Smith
|
|
* Created: Mon Jun 11 15:32:53 BST 1990
|
|
*
|
|
* (C) Copyright 1990, Hewlett-Packard Ltd.
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*
|
|
**********************************************************************/
|
|
|
|
#ifndef IMGS_H
|
|
#define IMGS_H
|
|
|
|
#include "img.h"
|
|
#include "params.h"
|
|
|
|
extern INT_VAR_H (image_default_resolution, 300, "Image resolution dpi");
|
|
|
|
inT32 check_legal_image_size( //get rest of image
|
|
inT32 x, //x size required
|
|
inT32 y, //ysize required
|
|
inT8 bits_per_pixel //bpp required
|
|
);
|
|
//copy rectangle
|
|
extern DLLSYM void copy_sub_image(IMAGE *source, //source image
|
|
inT32 xstart, //start coords
|
|
inT32 ystart,
|
|
inT32 xext, //extent to copy
|
|
inT32 yext,
|
|
IMAGE *dest, //destination image
|
|
inT32 xdest, //destination coords
|
|
inT32 ydest,
|
|
BOOL8 adjust_grey //shift to new bpp
|
|
);
|
|
//enlarge rectangle
|
|
extern DLLSYM void enlarge_sub_image(IMAGE *source, //source image
|
|
inT32 xstart, //scaled start coords
|
|
inT32 ystart,
|
|
IMAGE *dest, //destination image
|
|
inT32 xdest, //dest coords
|
|
inT32 ydest,
|
|
inT32 xext, //destination extent
|
|
inT32 yext,
|
|
inT32 scale, //scale factor
|
|
BOOL8 adjust_grey //shift to new bpp
|
|
);
|
|
//reduce rectangle
|
|
extern DLLSYM void fast_reduce_sub_image(IMAGE *source, //source image
|
|
inT32 xstart, //start coords
|
|
inT32 ystart,
|
|
inT32 xext, //extent to copy
|
|
inT32 yext,
|
|
IMAGE *dest, //destination image
|
|
inT32 xdest, //destination coords
|
|
inT32 ydest,
|
|
inT32 scale, //reduction factor
|
|
BOOL8 adjust_grey //shift to new bpp
|
|
);
|
|
//reduce rectangle
|
|
extern DLLSYM void reduce_sub_image(IMAGE *source, //source image
|
|
inT32 xstart, //start coords
|
|
inT32 ystart,
|
|
inT32 xext, //extent to copy
|
|
inT32 yext,
|
|
IMAGE *dest, //destination image
|
|
inT32 xdest, //destination coords
|
|
inT32 ydest,
|
|
inT32 scale, //reduction factor
|
|
BOOL8 adjust_grey //shift to new bpp
|
|
);
|
|
extern DLLSYM void invert_image( /*invert the image */
|
|
IMAGE *image /*image ot invert */
|
|
);
|
|
//bias rectangle
|
|
extern DLLSYM void bias_sub_image(IMAGE *source, //source image
|
|
inT32 xstart, //start coords
|
|
inT32 ystart,
|
|
inT32 xext, //extent to copy
|
|
inT32 yext,
|
|
uinT8 bias //number to add
|
|
);
|
|
//copy rectangle
|
|
extern DLLSYM void starbase_to_normal(IMAGE *source, //source image
|
|
inT32 xstart, //start coords
|
|
inT32 ystart,
|
|
inT32 xext, //extent to copy
|
|
inT32 yext,
|
|
IMAGE *dest, //destination image
|
|
inT32 xdest, //destination coords
|
|
inT32 ydest,
|
|
BOOL8 preserve_grey //shift to new bpp
|
|
);
|
|
#endif
|