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Leptonica 1.68
C Image Processing Library
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Leptonica 1.68
C Image Processing Library
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Contains definitions of simple structuring elements. More...
Go to the source code of this file.
Defines | |
| #define | L_BUF_SIZE 512 |
Functions | |
| SELA * | selaAddBasic (SELA *sela) |
| SELA * | selaAddHitMiss (SELA *sela) |
| SELA * | selaAddDwaLinear (SELA *sela) |
| SELA * | selaAddDwaCombs (SELA *sela) |
| SELA * | selaAddCrossJunctions (SELA *sela, l_float32 hlsize, l_float32 mdist, l_int32 norient, l_int32 debugflag) |
| SELA * | selaAddTJunctions (SELA *sela, l_float32 hlsize, l_float32 mdist, l_int32 norient, l_int32 debugflag) |
Variables | |
| static const l_int32 | num_linear = 25 |
| static const l_int32 | basic_linear [] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 21, 25, 30, 31, 35, 40, 41, 45, 50, 51} |
Contains definitions of simple structuring elements.
Contains definitions of simple structuring elements
SELA *selaAddBasic()
Linear horizontal and vertical
Square
Diagonals
SELA *selaAddHitMiss()
Isolated foreground pixel
Horizontal and vertical edges
Slanted edge
SELA *selaAddDwaLinear()
SELA *selaAddDwaCombs()
SELA *selaAddCrossJunctions()
SELA *selaAddTJunctions()
Definition in file sel2.c.
| #define L_BUF_SIZE 512 |
Definition at line 43 of file sel2.c.
Referenced by selaAddBasic(), selaAddCrossJunctions(), selaAddDwaCombs(), selaAddDwaLinear(), and selaAddTJunctions().
Input: sela (<optional>) Return: sela with additional sels, or null on error
Notes: (1) Adds the following sels:
Definition at line 65 of file sel2.c.
References basic_linear, Sel::cx, Sel::cy, ERROR_PTR, L_BUF_SIZE, NULL, num_linear, PROCNAME, selaAddSel(), selaCreate(), selCreate(), selCreateBrick(), selSetElement(), and size.
Referenced by main(), pixCloseBrickDwa(), pixDilateBrickDwa(), pixErodeBrickDwa(), and pixOpenBrickDwa().
Input: sela (<optional>) Return: sela with additional sels, or null on error
Definition at line 153 of file sel2.c.
References ERROR_PTR, NULL, PROCNAME, selaAddSel(), selaCreate(), selCreateBrick(), and selSetElement().
Referenced by main().
Input: sela (<optional>) Return: sela with additional sels, or null on error
Notes: (1) Adds all linear (horizontal, vertical) sels from 2 to 63 pixels in length, which are the sizes over which dwa code can be generated.
Definition at line 236 of file sel2.c.
References ERROR_PTR, L_BUF_SIZE, NULL, PROCNAME, selaAddSel(), selaCreate(), and selCreateBrick().
Referenced by main().
Input: sela (<optional>) Return: sela with additional sels, or null on error
Notes: (1) Adds all comb (horizontal, vertical) Sels that are used in composite linear morphological operations up to 63 pixels in length, which are the sizes over which dwa code can be generated.
Definition at line 276 of file sel2.c.
References ERROR_PTR, L_BUF_SIZE, L_HORIZ, L_VERT, NULL, PROCNAME, selaAddSel(), selaCreate(), selectComposableSels(), selectComposableSizes(), and size.
Referenced by main().
| SELA* selaAddCrossJunctions | ( | SELA * | sela, |
| l_float32 | hlsize, | ||
| l_float32 | mdist, | ||
| l_int32 | norient, | ||
| l_int32 | debugflag | ||
| ) |
Input: sela (<optional>) hlsize (length of each line of hits from origin) mdist (distance of misses from the origin) norient (number of orientations; max of 8) debugflag (1 for debug output) Return: sela with additional sels, or null on error
Notes: (1) Adds hitmiss Sels for the intersection of two lines. If the lines are very thin, they must be nearly orthogonal to register. (2) The number of Sels generated is equal to . (3) If == 2, this generates 2 Sels of crosses, each with two perpendicular lines of hits. One Sel has horizontal and vertical hits; the other has hits along lines at +-45 degrees. Likewise, if == 3, this generates 3 Sels of crosses oriented at 30 degrees with each other. (4) It is suggested that be chosen at least 1 greater than . Try values of (, ) such as (6,5), (7,6), (8,7), (9,7), etc.
Definition at line 333 of file sel2.c.
References ERROR_PTR, generatePtaLineFromPt(), IFF_PNG, L_BUF_SIZE, L_INSERT, L_MAX, L_SET_PIXELS, NULL, pixaAddPix(), pixaCreate(), pixaDestroy(), pixaDisplayTiledAndScaled(), pixaGetPixDimensions(), pixCreate(), pixDestroy(), pixDisplay(), pixPaintThroughMask(), pixRenderPta(), pixScaleBySampling(), pixSetAll(), pixSetPixel(), pixWriteTempfile(), PROCNAME, ptaDestroy(), ptaJoin(), selaAddSel(), selaCreate(), selaDisplayInPix(), selaWriteStream(), and selCreateFromColorPix().
| SELA* selaAddTJunctions | ( | SELA * | sela, |
| l_float32 | hlsize, | ||
| l_float32 | mdist, | ||
| l_int32 | norient, | ||
| l_int32 | debugflag | ||
| ) |
Input: sela (<optional>) hlsize (length of each line of hits from origin) mdist (distance of misses from the origin) norient (number of orientations; max of 8) debugflag (1 for debug output) Return: sela with additional sels, or null on error
Notes: (1) Adds hitmiss Sels for the T-junction of two lines. If the lines are very thin, they must be nearly orthogonal to register. (2) The number of Sels generated is 4 * . (3) It is suggested that be chosen at least 1 greater than . Try values of (, ) such as (6,5), (7,6), (8,7), (9,7), etc.
Definition at line 455 of file sel2.c.
References ERROR_PTR, generatePtaLineFromPt(), IFF_PNG, L_BUF_SIZE, L_INSERT, L_MAX, L_SET_PIXELS, NULL, pixaAddPix(), pixaCreate(), pixaDestroy(), pixaDisplayTiledAndScaled(), pixaGetPixDimensions(), pixCreate(), pixDestroy(), pixDisplay(), pixPaintThroughMask(), pixRenderPta(), pixScaleBySampling(), pixSetAll(), pixSetPixel(), pixWriteTempfile(), PROCNAME, ptaDestroy(), ptaJoin(), selaAddSel(), selaCreate(), selaDisplayInPix(), selaWriteStream(), and selCreateFromColorPix().
const l_int32 num_linear = 25 [static] |
Definition at line 47 of file sel2.c.
Referenced by selaAddBasic().
const l_int32 basic_linear[] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 21, 25, 30, 31, 35, 40, 41, 45, 50, 51} [static] |
Definition at line 48 of file sel2.c.
Referenced by selaAddBasic().
1.7.3