imgshrink

Capsim Block Documentation

Short Description

This star inputs an image and decimates 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 width shrink factor int widthFactor 1
1 height shrink Factor int heightFactor 1
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States
Num Type Name Initial Value Description
0 float** mat_PP
1 float** matTrans_PP
2 int pwidth
3 int pheight
4 image_t img
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Declarations


 

	int no_samples;
	int i,j,k,kk;
	int	factor;
	float	temp;
	float	pixel;
	int	row,column;
	int	newWidth,newHeight;
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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) {
	IT_IN(0);
	img=x(0);
	pheight=img.height;
	pwidth=img.width;
	mat_PP=img.image_PP;
	fprintf(stderr,"imgshrink input width and height %d %d \n",pwidth,pheight);

	/*
	 * if the image has been inputted and is ready to be outputted
	 */
	   newWidth=pwidth/widthFactor;
	   newHeight=pheight/heightFactor;
	   matTrans_PP=(float**)calloc(newHeight,sizeof(float*));
	   if(matTrans_PP == NULL) {
		fprintf(stderr,"imgshrink: Could not allocate during run time.\n");
		return(1);
	   }
	   for(k=0; k
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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



 

/* imgshrink.s */
/***********************************************************************
                             imgshrink()
************************************************************************
This star inputs an image and decimates it.
NOTE: Input and output buffers are of image_t type.

imgshrink


This star inputs an image and decimates it.
NOTE: Input and output buffers are of image_t type.


Programmer:  	Sasan Ardalan	
Date: 		May 12, 1993

*/