1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
package ij.plugin;
import ij.*;
import ij.plugin.filter.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
/** This plugin implements the Image/Adjust/Canvas Size command.
It changes the canvas size of an image or stack without resizing the image.
The border is filled with the current background color.
@author Jeffrey Kuhn (jkuhn at ccwf.cc.utexas.edu)
*/
public class CanvasResizer implements PlugIn {
boolean zeroFill = Prefs.get("resizer.zero", false);
public void run(String arg) {
int wOld, hOld, wNew, hNew;
boolean fIsStack = false;
ImagePlus imp = IJ.getImage();
wOld = imp.getWidth();
hOld = imp.getHeight();
ImageStack stackOld = imp.getStack();
if ((stackOld != null) && (stackOld.getSize() > 1))
fIsStack = true;
String[] sPositions = {
"Top-Left", "Top-Center", "Top-Right",
"Center-Left", "Center", "Center-Right",
"Bottom-Left", "Bottom-Center", "Bottom-Right"
};
String strTitle = fIsStack ? "Resize Stack Canvas" : "Resize Image Canvas";
GenericDialog gd = new GenericDialog(strTitle);
gd.addNumericField("Width:", wOld, 0, 5, "pixels");
gd.addNumericField("Height:", hOld, 0, 5, "pixels");
gd.addChoice("Position:", sPositions, sPositions[4]);
gd.addCheckbox("Zero Fill", zeroFill);
gd.showDialog();
if (gd.wasCanceled())
return;
wNew = (int)gd.getNextNumber();
hNew = (int)gd.getNextNumber();
int iPos = gd.getNextChoiceIndex();
zeroFill = gd.getNextBoolean();
Prefs.set("resizer.zero", zeroFill);
int xOff, yOff;
int xC = (wNew - wOld)/2; // offset for centered
int xR = (wNew - wOld); // offset for right
int yC = (hNew - hOld)/2; // offset for centered
int yB = (hNew - hOld); // offset for bottom
switch(iPos) {
case 0: // TL
xOff=0; yOff=0; break;
case 1: // TC
xOff=xC; yOff=0; break;
case 2: // TR
xOff=xR; yOff=0; break;
case 3: // CL
xOff=0; yOff=yC; break;
case 4: // C
xOff=xC; yOff=yC; break;
case 5: // CR
xOff=xR; yOff=yC; break;
case 6: // BL
xOff=0; yOff=yB; break;
case 7: // BC
xOff=xC; yOff=yB; break;
case 8: // BR
xOff=xR; yOff=yB; break;
default: // center
xOff=xC; yOff=yC; break;
}
if (fIsStack) {
ImageStack stackNew = expandStack(stackOld, wNew, hNew, xOff, yOff);
imp.setStack(null, stackNew);
} else {
if (!IJ.macroRunning())
Undo.setup(Undo.COMPOUND_FILTER, imp);
ImageWindow win = imp.getWindow();
if (win!=null && (win instanceof PlotWindow))
((PlotWindow)win).getPlot().setFrozen(true);
ImageProcessor newIP = expandImage(imp.getProcessor(), wNew, hNew, xOff, yOff);
imp.setProcessor(null, newIP);
if (!IJ.macroRunning())
Undo.setup(Undo.COMPOUND_FILTER_DONE, imp);
}
Overlay overlay = imp.getOverlay();
if (overlay!=null)
overlay.translate(xOff, yOff);
}
public ImageStack expandStack(ImageStack stackOld, int wNew, int hNew, int xOff, int yOff) {
int nFrames = stackOld.getSize();
ImageProcessor ipOld = stackOld.getProcessor(1);
java.awt.Color colorBack = Toolbar.getBackgroundColor();
ImageStack stackNew = new ImageStack(wNew, hNew, stackOld.getColorModel());
ImageProcessor ipNew;
for (int i=1; i<=nFrames; i++) {
IJ.showProgress((double)i/nFrames);
ipNew = ipOld.createProcessor(wNew, hNew);
if (zeroFill)
ipNew.setValue(0.0);
else
ipNew.setColor(colorBack);
ipNew.fill();
ipNew.insert(stackOld.getProcessor(i), xOff, yOff);
stackNew.addSlice(stackOld.getSliceLabel(i), ipNew);
}
return stackNew;
}
public ImageProcessor expandImage(ImageProcessor ipOld, int wNew, int hNew, int xOff, int yOff) {
ImageProcessor ipNew = ipOld.createProcessor(wNew, hNew);
if (zeroFill)
ipNew.setValue(0.0);
else
ipNew.setColor(Toolbar.getBackgroundColor());
ipNew.fill();
ipNew.insert(ipOld, xOff, yOff);
return ipNew;
}
}
|
