Project Name: erosion.dpj
Project Group Name: erosion.dpg

Project Type:
    ADSP-BF533 [ ]
    ADSP-BF537 [ ]
    ADSP-BF561 [X]

Hardware Used:
    ADSP-BF561 EZ-Kit
    VisualDSP++ Emulator

System Services Components Used:
    None



OVERVIEW
========
The erosion function performs erosion  on the input binary image.  The structured elements
are stored as shown below.

                        | h00  h01  h02 |
                        | h10  h11  h12 |
                        | h20  h21  h22 |

 If input under consideration is:
                        | x00 x01 x02 |
                        | x10 x11 x12 |
                        | x20 x21 x22 |

Then out put Y11 = ((x00&h00) &(x01&h01) & (x02&h02) &(x10&h10) &(x11&h121)
                             & (x12&h12)  & (x20 &h20) &(x21&h21) &(x22 &h22));

The values in first row, last row, first column and last column output, are treated as zero.

For this function to work properly the number of columns in the input image must be an even number,
aligned to a word boundary.  The input image must not be stored in the same memory bank with the
structured element.

Prototype:
     void _erosion(unsigned char* in, int row, int col, short * mask, unsigned char *out );

Arguments:
        in   ->  pointer to the input image.
        row  ->  number of rows of input image.
        col  ->  number of columns of input image.
        mask ->  pointer 3x3 mask.
        out  ->  pointer the output buffer.

Registers used  : A0, A1, R0-R7, I1, B1, L1, P0-P5, LC0, LC1. P0-P5.



RUNNING THE APPLICATION (on the ADSP-BF561 EZ-KIT Lite)
=========================================================

1) Load project group "erosion.dpg".

2) Select "Project->Rebuild Project"

3) Click OK in the "Load Multiprocessor Confirmation" window to load p0.dxe and p1.dxe.

4) Select "Debug->Multiprocessor Run".

5) Observe output on VisualDSP++ console window.




Files in This Application
==========================

This example consists of the following files:

    "./erosion.ldf" - linker description file
    "./erosion.dpj" - project file
    "./erosion.dpg" - project group file

    "corea/corea.dpj" -  Core A project file

    "../../src/t_erosion.c" -  Core A source file
    "../../src/erosion.asm" -  Core A source file
    "../../../../BFinUtils/ADSP-BF561/SDK-cycle_count.asm" -  Core A source file

    "../../include/erosion.h" -  Core A include file
    "../../../../Include/SDK-cycle_count.h" -  Core A include file

    "coreb/coreb.dpj" -  Core B project file
    "../../../../BFinUtils/ADSP-BF561/SDK-coreb_idle.c - Core B source file

    "sml2/sml2.dpj" -  Shared Memory L2 project file
    "../../../../BFinUtils/ADSP-BF561/SDK-dummy.c - Shared Memory L2 source file

    "sml3/sml3.dpj" -  Shared Memory L3 project file
    "../../../../BFinUtils/ADSP-BF561/SDK-dummy.c    -  Shared Memory L3 source file