public class Frame {
private byte[] data;
private Configuration config;
+// private Mat colImage;
+// private Mat rowImage;
+ private Mat converted;
+ private Mat[] images;
private Frame(byte[] data) {
this.data = data;
}
private void convert() {
+ /* TODO: how to do this?
+ 1) Resize to an image with the size of the number of leds and use config to define how many pixels deep into the screen to use.
+ 2) Resize to 16x9 and use 2 pixels of depth (or maybe 3) and interpolate for each led.
+ 3) Resize to 2 images where each led uses 2 pixels:
+ vertical - 16 x <#leds>
+ horizontal - <#leds> x 9
+ 4) Resize to cols x rows first, then resize to a vertical and a horizontal like in (3).
+ */
Mat src = new Mat(config.video.height, config.video.width, CvType.CV_8UC2); // 8-bit, unsigned, 2 channels
src.put(0, 0, data);
- Mat converted = new Mat();
- Mat resized = new Mat();
+// Mat converted = new Mat();
+// Mat resized = new Mat();
+//
+// timeIt("total", () -> {
+// timeIt("yuyv2rgb", () -> Imgproc.cvtColor(src, converted, Imgproc.COLOR_YUV2RGB_YUYV)); // 3.5 - 4.0 ms
+// timeIt("resizing", () -> Imgproc.resize(converted, resized, new Size(config.leds.cols, config.leds.rows), 0, 0, Imgproc.INTER_AREA)); // INTER_AREA is the best for shrinking, but also the slowest (~1.5 ms)
+// });
- timeIt("total", () -> {
- timeIt("yuyv2rgb", () -> Imgproc.cvtColor(src, converted, Imgproc.COLOR_YUV2RGB_YUYV)); // 3.5 - 4.0 ms
- timeIt("resizing", () -> Imgproc.resize(converted, resized, new Size(config.leds.cols, config.leds.rows), 0, 0, Imgproc.INTER_AREA)); // INTER_AREA is the best for shrinking, but also the slowest (~1.5 ms)
- });
+ Mat cropped = src.submat(
+ config.video.crop.top,
+ config.video.height - config.video.crop.bottom,
+ config.video.crop.left,
+ config.video.width - config.video.crop.right
+ );
+ converted = new Mat();
+ Imgproc.cvtColor(cropped, converted, config.video.format);
+// timeIt("model 1", () -> model1(converted, Imgproc.INTER_AREA));
+// timeIt("model 2", () -> model2(converted, Imgproc.INTER_AREA));
+// timeIt("model 3", () -> model3(converted, Imgproc.INTER_AREA));
+ timeIt("model 4", () -> model4(converted, Imgproc.INTER_AREA));
// save(converted, "/home/kaka/test-converted.data");
// save(resized, "/home/kaka/test-resized.data");
+ src.release();
+ cropped.release();
+ }
+
+ private void model1(Mat src, int interpolation) {
+ Mat resized = new Mat();
+ Imgproc.resize(src, resized, new Size(config.leds.cols, config.leds.rows), 0, 0, interpolation);
+ }
+
+ private void model2(Mat src, int interpolation) {
+ Mat resized = new Mat();
+ Imgproc.resize(src, resized, new Size(16, 9), 0, 0, interpolation);
+ }
+
+ private void model3(Mat src, int interpolation) {
+// colImage = new Mat();
+// rowImage = new Mat();
+// Imgproc.resize(src, colImage, new Size(config.leds.cols, 9), 0, 0, interpolation);
+// Imgproc.resize(src, rowImage, new Size(16, config.leds.rows), 0, 0, interpolation);
+ }
+
+ private void model4(Mat src, int interpolation) {
+ int width = 3 * src.cols() / 16;
+ int height = 3 * src.rows() / 9;
+ Mat[] cropped = new Mat[] {
+ /* LEFT */ src.submat(0, src.rows(), 0, width),
+ /* RIGHT */ src.submat(0, src.rows(), src.cols() - width, src.cols()),
+ /* TOP */ src.submat(0, height, 0, src.cols()),
+ /* BOTTOM */ src.submat(src.rows() - height, src.rows(), 0, src.cols()),
+ };
+ images = new Mat[] {new Mat(), new Mat(), new Mat(), new Mat()};
+// Imgproc.resize(cropped[ListPosition.LEFT.ordinal()], images[ListPosition.LEFT.ordinal()], new Size(3, config.leds.rows), 0, 0, interpolation);
+ Imgproc.resize(cropped[0], images[0], new Size(3, config.leds.rows), 0, 0, interpolation);
+ Imgproc.resize(cropped[1], images[1], new Size(3, config.leds.rows), 0, 0, interpolation);
+ Imgproc.resize(cropped[2], images[2], new Size(config.leds.cols, 3), 0, 0, interpolation);
+ Imgproc.resize(cropped[3], images[3], new Size(config.leds.cols, 3), 0, 0, interpolation);
+// Imgproc.resize(src, colImage, new Size(config.leds.cols, 9), 0, 0, interpolation);
+// Imgproc.resize(src, rowImage, new Size(16, config.leds.rows), 0, 0, interpolation);
+ }
+
+ private Color wrappedGetLedColor(ListPosition listPosition, int xy) {
+ Color c = getLedColor(listPosition, xy);
+ double[] hsv = c.toHSV();
+ return Color.hsv(hsv[0], 1, 1);
+ }
+
+ private Color getLedColor(ListPosition listPosition, int xy) {
+ // TODO: maybe use highest value from pixels? 100 % from 1st, 66 % from 2nd, 33 % from 3rd. colors might be strange.
+ switch (listPosition) {
+ case LEFT:
+ return interpolatedRowColor(images[0], xy, 0, 1, 2);
+// return interpolatedRowColor(xy, 0, 1, 2);
+ case RIGHT:
+ return interpolatedRowColor(images[1], xy, 2, 1, 0);
+// return interpolatedRowColor(xy, 15, 14, 13);
+ case TOP:
+ return interpolatedColColor(images[2], xy, 0, 1, 2);
+// return interpolatedColColor(xy, 0, 1, 2);
+ case BOTTOM:
+ return interpolatedColColor(images[3], xy, 2, 1, 0);
+// return interpolatedColColor(xy, 8, 7, 6);
+ }
+ return null;
+ }
+
+ // private Color interpolatedRowColor(int y, int x1, int x2, int x3) {
+ private Color interpolatedRowColor(Mat rowImage, int y, int x1, int x2, int x3) {
+ return pixelToColor(rowImage, x3, y).interpolate(pixelToColor(rowImage, x2, y), 0.65).interpolate(pixelToColor(rowImage, x1, y), 0.65);
+ }
+
+// private Color interpolatedColColor(int x, int y1, int y2, int y3) {
+ private Color interpolatedColColor(Mat colImage, int x, int y1, int y2, int y3) {
+ return pixelToColor(colImage, x, y3).interpolate(pixelToColor(colImage, x, y2), 0.65).interpolate(pixelToColor(colImage, x, y1), 0.65);
+ }
+
+ private Color pixelToColor(Mat image, int x, int y) {
+ byte[] rgb = new byte[3];
+ image.get(y, x, rgb);
+ return Color.rgb(rgb[0] & 0xff, rgb[1] & 0xff, rgb[2] & 0xff);
}
private void save(Mat mat, String filepath) {
}
public byte[] getData() {
- return data;
+ byte[] buff = new byte[(int) (converted.total() * converted.channels())];
+ converted.get(0, 0, buff);
+ return buff;
+ }
+
+// public Mat getColImage() {
+// return colImage;
+// }
+
+// public Mat getRowImage() {
+// return rowImage;
+// }
+
+ public Mat getConvertedImage() {
+ return converted;
+ }
+
+ /**
+ * Creates a LED frame going counter-clockwise from the bottom-left corner, sans the corners.
+ */
+ public LedFrame getLedFrame() {
+ LedFrame frame = LedFrame.from(config);
+ int led = 0;
+ for (int i = 0; i < config.leds.cols; i++) frame.setLedColor(led++, wrappedGetLedColor(ListPosition.BOTTOM, i));
+ for (int i = config.leds.rows - 1; i >= 0; i--) frame.setLedColor(led++, wrappedGetLedColor(ListPosition.RIGHT, i));
+ for (int i = config.leds.cols - 1; i >= 0; i--) frame.setLedColor(led++, wrappedGetLedColor(ListPosition.TOP, i));
+ for (int i = 0; i < config.leds.rows; i++) frame.setLedColor(led++, wrappedGetLedColor(ListPosition.LEFT, i));
+ return frame;
}
}