Leptonica 1.54
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Функции | |
static l_int32 | pnmReadNextAsciiValue (FILE *fp, l_int32 *pval) |
static l_int32 | pnmSkipCommentLines (FILE *fp) |
PIX * | pixReadStreamPnm (FILE *fp) |
l_int32 | readHeaderPnm (const char *filename, PIX **ppix, l_int32 *pwidth, l_int32 *pheight, l_int32 *pdepth, l_int32 *ptype, l_int32 *pbps, l_int32 *pspp) |
l_int32 | freadHeaderPnm (FILE *fp, PIX **ppix, l_int32 *pwidth, l_int32 *pheight, l_int32 *pdepth, l_int32 *ptype, l_int32 *pbps, l_int32 *pspp) |
l_int32 | pixWriteStreamPnm (FILE *fp, PIX *pix) |
l_int32 | pixWriteStreamAsciiPnm (FILE *fp, PIX *pix) |
PIX * | pixReadMemPnm (const l_uint8 *cdata, size_t size) |
l_int32 | sreadHeaderPnm (const l_uint8 *cdata, size_t size, l_int32 *pwidth, l_int32 *pheight, l_int32 *pdepth, l_int32 *ptype, l_int32 *pbps, l_int32 *pspp) |
l_int32 | pixWriteMemPnm (l_uint8 **pdata, size_t *psize, PIX *pix) |
Переменные | |
static const l_int32 | MAX_PNM_WIDTH = 100000 |
static const l_int32 | MAX_PNM_HEIGHT = 100000 |
l_int32 freadHeaderPnm | ( | FILE * | fp, |
PIX ** | ppix, | ||
l_int32 * | pwidth, | ||
l_int32 * | pheight, | ||
l_int32 * | pdepth, | ||
l_int32 * | ptype, | ||
l_int32 * | pbps, | ||
l_int32 * | pspp | ||
) |
Input: stream opened for read &pix (<optional return>=""> use null to return only header data) &width (<return>) &height (<return>) &depth (<return>) &type (<return> pnm type) &bps (<optional return>="">, bits/sample) &spp (<optional return>="">, samples/pixel) Return: 0 if OK, 1 on error
PIX* pixReadStreamPnm | ( | FILE * | fp | ) |
Input: stream opened for read Return: pix, or null on error
Input: stream opened for write pix Return: 0 if OK; 1 on error
Writes "ascii" format only: 1 bpp --> pbm (P1) 2, 4, 8, 16 bpp, no colormap or grayscale colormap --> pgm (P2) 2, 4, 8 bpp with color-valued colormap, or rgb --> rgb ppm (P3)
Input: stream opened for write pix Return: 0 if OK; 1 on error
Notes: (1) This writes "raw" packed format only: 1 bpp --> pbm (P4) 2, 4, 8, 16 bpp, no colormap or grayscale colormap --> pgm (P5) 2, 4, 8 bpp with color-valued colormap, or rgb --> rgb ppm (P6) (2) 24 bpp rgb are not supported in leptonica, but this will write them out as a packed array of bytes (3 to a pixel).
Return: 0 if OK, 1 on error or EOF.
Notes: (1) This reads the next sample value in ascii from the the file.
static l_int32 pnmSkipCommentLines | ( | FILE * | fp | ) | [static] |
Return: 0 if OK, 1 on error or EOF
Notes: (1) Comment lines begin with '#' (2) Usage: caller should check return value for EOF
l_int32 readHeaderPnm | ( | const char * | filename, |
PIX ** | ppix, | ||
l_int32 * | pwidth, | ||
l_int32 * | pheight, | ||
l_int32 * | pdepth, | ||
l_int32 * | ptype, | ||
l_int32 * | pbps, | ||
l_int32 * | pspp | ||
) |
Input: filename &pix (<optional return>=""> use null to return only header data) &width (<return>) &height (<return>) &depth (<return>) &type (<return> pnm type) &bps (<optional return>="">, bits/sample) &spp (<optional return>="">, samples/pixel) Return: 0 if OK, 1 on error
l_int32 sreadHeaderPnm | ( | const l_uint8 * | cdata, |
size_t | size, | ||
l_int32 * | pwidth, | ||
l_int32 * | pheight, | ||
l_int32 * | pdepth, | ||
l_int32 * | ptype, | ||
l_int32 * | pbps, | ||
l_int32 * | pspp | ||
) |
const l_int32 MAX_PNM_HEIGHT = 100000 [static] |
const l_int32 MAX_PNM_WIDTH = 100000 [static] |