imageChangeOverlay - returns image1 but transparent where both images are identical [1032771]

< > BotCompany Repo | #1032771 // imageChangeOverlay - returns image1 but transparent where both images are identical

JavaX fragment (include) [tags: use-pretranspiled]

// Note: This can probably be optimized if all pixels are direct-grabbed
// and image2 is expendable (then you can use it as output?)
static BufferedImage imageChangeOverlay(BufferedImage image1, BufferedImage image2) {
  assertSameSize(image1, image2);
  int w = image1.getWidth(), h = image1.getHeight(), n = w*h;
  int[] pixels1 = pixelsOfBufferedImage(image1);
  int[] pixels2 = pixelsOfBufferedImage(image2);
  int[] pixelsOut = new[n];
  for i to n: {
    int rgb = pixels1[i];
    pixelsOut[i] = rgb == pixels2[i] ? 0 : rgb;
  }
  ret newBufferedImage(w, h, pixelsOut);
}

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Snippet ID:

#1032771

Snippet name:

imageChangeOverlay - returns image1 but transparent where both images are identical

Eternal ID of this version:

#1032771/2

Text MD5:

b91a91f3ee1e747e25f7300e5473050a

Transpilation MD5:

48a1eb3f9fdd27aa4512bc3c7227b5ff

Author:

stefan

Category:

javax

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2021-10-05 23:01:57

Source code size:

591 bytes / 14 lines

Pitched / IR pitched:

No / No

Views / Downloads:

172 / 268

Version history:

1 change(s)

Referenced in:

[show references]

1	// Note: This can probably be optimized if all pixels are direct-grabbed
2	// and image2 is expendable (then you can use it as output?)
3	static BufferedImage imageChangeOverlay(BufferedImage image1, BufferedImage image2) {
4	assertSameSize(image1, image2);
5	int w = image1.getWidth(), h = image1.getHeight(), n = w*h;
6	int[] pixels1 = pixelsOfBufferedImage(image1);
7	int[] pixels2 = pixelsOfBufferedImage(image2);
8	int[] pixelsOut = new[n];
9	for i to n: {
10	int rgb = pixels1[i];
11	pixelsOut[i] = rgb == pixels2[i] ? 0 : rgb;
12	}
13	ret newBufferedImage(w, h, pixelsOut);
14	}