vector-quantizer/ImageVector.java at master · MostafaOmar98/vector-quantizer · GitHub

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importjava.util.ArrayList;

publicclassImageVector {
privateintn, m;
privateint[][] data;
ImageVector()
 {
n = m = 0;
data = null;
 }
ImageVector(intn, intm)
 {
this.n = n;
this.m = m;
data = newint[n][m];
 }

ImageVector(int[][] other)
 {
if (other != null) {
n = other.length;
m = other[0].length;
data = other;
 }
else
 {
n = m = 0;
data = null;
 }
 }

publicintget(inti, intj)
 {
returndata[i][j];
 }

publicvoidset(inti, intj, intv)
 {
data[i][j] = v;
 }

publicstaticImageVectorgetAverage(ArrayList<ImageVector> vectors)
 {
intn = vectors.get(0).n, m = vectors.get(0).m; // handle error
int[][] data = newint[n][m];
for (ImageVectorv : vectors)
 {
for (inti = 0; i < v.n; ++i)
 {
for (intj = 0; j < v.m; ++j)
 {
data[i][j] += v.get(i, j);
 }
 }
 }
for (inti = 0; i < n; ++i)
 {
for (intj = 0; j < m; ++j) {
data[i][j] = Math.round((float)data[i][j]/vectors.size());
 }
 }

ImageVectorret = newImageVector(data);
returnret;
 }

intgetNumberOfRows()
 {
returnn;
 }
intgetNumberOfColumns()
 {
returnm;
 }

doublegetDistance(ImageVectorother)
 {
/*
 square(value(i,j) - otherValue(i,j)) for all i, j
 */
doubleret = 0;
for (inti = 0; i < n; ++i)
 {
for (intj = 0; j < m; ++j)
 {
intd = this.get(i, j) - other.get(i, j);
ret += d * d;
 }
 }
returnMath.sqrt(ret);
 }

publicStringtoString()
 {
Stringret = newString();
for (inti = 0; i < n; ++i)
 {
for (intj = 0; j < m; ++j)
 {
ret += "" + data[i][j];
if (j != m - 1)
ret += " ";
 }
if (i != n - 1)
ret += "\n";
 }
returnret;
 }

}