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1 | srecord noeq HashBinaryImage(IBinaryImage img) {
|
2 | long hash; |
3 | |
4 | long get() {
|
5 | if (img == null) ret hash; |
6 | var img = this.img.toImage2B(); |
7 | |
8 | int w = img.getWidth(), h = img.getHeight(); |
9 | int n = w*h; |
10 | byte[] pixels = img.pixels; |
11 | |
12 | addToHash(w); |
13 | addToHash(h); |
14 | |
15 | for i to n: |
16 | addToHash((pixels[i/8] & (1 << (i & 7))) != 0 ? 0xFFFFFFFF : 0xFF000000); |
17 | |
18 | ret hash; |
19 | } |
20 | |
21 | void addToHash(long x) {
|
22 | hash = boostHashCombine64(hash, x); |
23 | } |
24 | } |
Began life as a copy of #1034815
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| Snippet ID: | #1035835 |
| Snippet name: | HashBinaryImage - makes a 64 bit hash of an IBinaryImage (compatible with HashBufferedImage) |
| Eternal ID of this version: | #1035835/4 |
| Text MD5: | 4ea07c5f99f6dd969950a206a50705db |
| Transpilation MD5: | cfeca2e9e3af2d321301373c9fe8d5dd |
| Author: | stefan |
| Category: | javax / imaging |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2022-08-02 19:20:22 |
| Source code size: | 505 bytes / 24 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 71 / 118 |
| Version history: | 3 change(s) |
| Referenced in: | [show references] |