imgnonlinfil

Capsim Block Documentation

Short Description

Input an image and perform nonlinear filtering on it.

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Input Connections
Port Type Name
0 image_t x
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Output Connections
Port Type Name
0 image_t y
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Parameters
Num Description Type Name Default Value
0 Nonliner Filter Type:2=min,3=median,4=max int type 3
1 Order int order 3
2 1=free input image, 0= don't int freeImageFlag 0
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States
Num Type Name Initial Value Description
0 image_t img
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Declarations


 

	int no_samples;
	int i,j,k;
	dsp_floatMatrix_Pt	filtered_P;
	dsp_floatMatrix_t	matrix;
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Initialization Code



 

             SET_CELL_SIZE_IN(0,sizeof(image_t));
		     SET_CELL_SIZE_OUT(0,sizeof(image_t));
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Main Code



 

/*
 * collect the image
 */
for (no_samples = MIN_AVAIL(); no_samples > 0; --no_samples) {
	/*
	 * input an image
	 */
	IT_IN(0);
	img=x(0);

	matrix.height=img.height;
	matrix.width=img.width;
	matrix.matrix_PP=img.image_PP;

	filtered_P=Dsp_NonlinearFilter(&matrix,type,order);
	if(filtered_P==NULL) {
		fprintf(stderr,"imgnonlinfilter: could not  filter. \n");
		return(1);
	}


        /*
         * Send image out
	 */

        if(freeImageFlag) {
              for(i=0; iwidth;
	img.height=filtered_P->height;
    	img.image_PP=filtered_P->matrix_PP;

	if(IT_OUT(0)) {
				KrnOverflow("imgnonlinfilter",0);
				return(99);
	}
	y(0) = img;
	
			
}
return(0);
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Wrapup Code
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License



/*  Capsim (r) Text Mode Kernel (TMK) Star Library (Blocks)
    Copyright (C) 1989-2017  Silicon DSP Corporation

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    http://www.silicondsp.com
    Silicon DSP  Corporation
    Las Vegas, Nevada
*/
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Description



 

/* imgnonlinfilter.s */
/***********************************************************************
                             imgnonlinfilter()
************************************************************************
Input an image and perform nonlinear filtering on  it.

imgnonlinfilter


Input an image and perform nonlinear filtering on  it.


Programmer:  	Sasan Ardalan	
Date: 		September 10, 1993

*/