Project Name: open.dpj

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

Hardware Used:
    ADSP-BF533 EZ-Kit
    VisualDSP++ Emulator

System Services Components Used:
    None

OVERVIEW
========
The open function performs open operation  on the input binary image.
This is performed  by doing an erosion function, followed by a dilation
function. Temporary results after the erosion operation are stored on the
stack, and later used as input for the dilation operation.

For this function to work properly, the number of columns in the input
image must be an even number, aligned to a word or half word boundary.
The input image must not be stored in the same memory bank with the
structured elements.  The same structured elements are used for both
erosion and dilation operation.   The structured elements are stored
as shown below.

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

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

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

Registers used : R0-R7, P0-P5.




RUNNING THE APPLICATION (on the ADSP-BF533 EZ-KIT Lite)
=======================================================

1) Load project "open.dpj".

2) Select "Project->Rebuild Project"

3) Select "Debug->Run".

4) Observe output on VisualDSP++ console window.



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

This example consists of the following files:

    "./open.ldf" - linker description file
    "./open.dpj" - project file
    "../../src/t_open.c" -  source file
    "../../src/open.asm" -  source file
    "../../src/dilation.asm" -  source file
    "../../src/erosion.asm" -  source file
    "../../include/open.h" -  include file
    "../../../../BFinUtils/ADSP-BF533/SDK-cycle_count.asm" -  source file
    "../../../../Include/SDK-cycle_count.h" -  include file