1 | sbool audioSplit1_debug = true; |
2 | static float audioSplit1_threshold = 0.025f; |
3 | |
4 | static L<IntRange> audioSplit1(BWImage img) {
|
5 | ret audioSplit1(img, audioSplit1_threshold); |
6 | } |
7 | |
8 | static L<IntRange> audioSplit1(BWImage img, float threshold) {
|
9 | int w = img.getWidth(); |
10 | float[] f = bwImageColumnBrightnesses(img); |
11 | |
12 | new L<IntRange> l; |
13 | int j = -1; |
14 | for (int i = 0; i < l(f); i++) |
15 | if (f[i] >= threshold) { // start / continue streak
|
16 | if (j < 0) j = i; |
17 | } else {
|
18 | if (j >= 0) { // end streak
|
19 | l.add(intRange(j, i)); |
20 | j = -1; |
21 | } |
22 | } |
23 | if (j >= 0) |
24 | l.add(intRange(j, w)); |
25 | if (audioSplit1_debug) |
26 | print("audioSplit1: " + w + " => " + sfu(l));
|
27 | ret l; |
28 | } |
Began life as a copy of #1018616
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| Snippet ID: | #1018617 |
| Snippet name: | audioSplit1 [uses column average brightness, for frequency images] |
| Eternal ID of this version: | #1018617/6 |
| Text MD5: | fe26a20853784de2e7d6560eefeef9ce |
| Author: | stefan |
| Category: | javax / ocr |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2018-10-08 01:07:21 |
| Source code size: | 722 bytes / 28 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 381 / 413 |
| Version history: | 5 change(s) |
| Referenced in: | [show references] |