virtualScaledIntegralImageBW [1022980]

< > BotCompany Repo | #1022980 // virtualScaledIntegralImageBW

JavaX fragment (include)

// not scaled
static IBWImage virtualScaledIntegralImageBW(BWIntegralImage img) {
  ret virtualScaledIntegralImageBW(img, img.getWidth(), img.getHeight());
}

static IBWImage virtualScaledIntegralImageBW(BWIntegralImage img, int w) {
  ret virtualScaledIntegralImageBW(img, w, iround(w*img.h/(double) img.w));
}

static IBWImage virtualScaledIntegralImageBW(BWIntegralImage img, int w, int h) {
  ret new IBWImage {
    int w1 = img.w, h1 = img.h;
    public int getWidth() { ret w; }
    public int getHeight() { ret h; }
    
    public float getFloatPixel(int x, int y) {
      int x1 = x*w1/w, x2 = max(x1+1, (x+1)*w1/w);
      int y1 = y*h1/h, y2 = max(y1+1, (y+1)*h1/h);
      int area = (x2-x1)*(y2-y1);
      int pixel = bwIntegralImage_sumRect(img, x1, y1, x2, y2)/area;
      ret pixel/255f;
    }
  };
}

Author comment

Began life as a copy of #1019597

Travelled to 7 computer(s): bhatertpkbcr, cfunsshuasjs, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tvejysmllsmz, vouqrxazstgt

Snippet ID:

#1022980

Snippet name:

virtualScaledIntegralImageBW

Eternal ID of this version:

#1022980/3

Text MD5:

a3a287ce4e2dcf2f02cdb8a0cd900db7

Author:

stefan

Category:

javax / imaging

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2019-04-17 07:58:04

Source code size:

837 bytes / 24 lines

Pitched / IR pitched:

No / No

Views / Downloads:

263 / 319

Version history:

2 change(s)

Referenced in:

[show references]

1	// not scaled
2	static IBWImage virtualScaledIntegralImageBW(BWIntegralImage img) {
3	ret virtualScaledIntegralImageBW(img, img.getWidth(), img.getHeight());
4	}
5
6	static IBWImage virtualScaledIntegralImageBW(BWIntegralImage img, int w) {
7	ret virtualScaledIntegralImageBW(img, w, iround(w*img.h/(double) img.w));
8	}
9
10	static IBWImage virtualScaledIntegralImageBW(BWIntegralImage img, int w, int h) {
11	ret new IBWImage {
12	int w1 = img.w, h1 = img.h;
13	public int getWidth() { ret w; }
14	public int getHeight() { ret h; }
15
16	public float getFloatPixel(int x, int y) {
17	int x1 = xw1/w, x2 = max(x1+1, (x+1)w1/w);
18	int y1 = yh1/h, y2 = max(y1+1, (y+1)h1/h);
19	int area = (x2-x1)*(y2-y1);
20	int pixel = bwIntegralImage_sumRect(img, x1, y1, x2, y2)/area;
21	ret pixel/255f;
22	}
23	};
24	}