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Original file line number | Diff line number | Diff line change |
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@@ -1,5 +1,5 @@ | ||
mod gray; | ||
mod hsv; | ||
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pub use gray::gray_from_rgb; | ||
pub use gray::{bgr_from_rgb, gray_from_rgb, rgb_from_gray}; | ||
pub use hsv::hsv_from_rgb; |
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Original file line number | Diff line number | Diff line change |
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use pyo3::prelude::*; | ||
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use crate::image::{FromPyImage, PyImage, ToPyImage}; | ||
use kornia_image::Image; | ||
use kornia_imgproc::color; | ||
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#[pyfunction] | ||
pub fn rgb_from_gray(image: PyImage) -> PyResult<PyImage> { | ||
let image_gray = Image::from_pyimage(image) | ||
.map_err(|e| PyErr::new::<pyo3::exceptions::PyException, _>(format!("src image: {}", e)))?; | ||
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let mut image_rgb = Image::from_size_val(image_gray.size(), 0u8) | ||
.map_err(|e| PyErr::new::<pyo3::exceptions::PyException, _>(format!("dst image: {}", e)))?; | ||
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color::rgb_from_gray(&image_gray, &mut image_rgb).map_err(|e| { | ||
PyErr::new::<pyo3::exceptions::PyException, _>(format!("failed to convert image: {}", e)) | ||
})?; | ||
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Ok(image_rgb.to_pyimage()) | ||
} | ||
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#[pyfunction] | ||
pub fn bgr_from_rgb(image: PyImage) -> PyResult<PyImage> { | ||
let image_rgb = Image::from_pyimage(image) | ||
.map_err(|e| PyErr::new::<pyo3::exceptions::PyException, _>(format!("src image: {}", e)))?; | ||
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let mut image_bgr = Image::from_size_val(image_rgb.size(), 0u8) | ||
.map_err(|e| PyErr::new::<pyo3::exceptions::PyException, _>(format!("dst image: {}", e)))?; | ||
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color::bgr_from_rgb(&image_rgb, &mut image_bgr).map_err(|e| { | ||
PyErr::new::<pyo3::exceptions::PyException, _>(format!("failed to convert image: {}", e)) | ||
})?; | ||
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Ok(image_bgr.to_pyimage()) | ||
} | ||
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#[pyfunction] | ||
pub fn gray_from_rgb(image: PyImage) -> PyResult<PyImage> { | ||
let image_rgb = Image::from_pyimage(image) | ||
.map_err(|e| PyErr::new::<pyo3::exceptions::PyException, _>(format!("src image: {}", e)))?; | ||
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let image_rgb = image_rgb.cast::<f32>().map_err(|e| { | ||
PyErr::new::<pyo3::exceptions::PyException, _>(format!("failed to convert image: {}", e)) | ||
})?; | ||
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let mut image_gray = Image::from_size_val(image_rgb.size(), 0f32) | ||
.map_err(|e| PyErr::new::<pyo3::exceptions::PyException, _>(format!("dst image: {}", e)))?; | ||
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color::gray_from_rgb(&image_rgb, &mut image_gray).map_err(|e| { | ||
PyErr::new::<pyo3::exceptions::PyException, _>(format!("failed to convert image: {}", e)) | ||
})?; | ||
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let image_gray = image_gray.cast::<u8>().map_err(|e| { | ||
PyErr::new::<pyo3::exceptions::PyException, _>(format!("failed to convert image: {}", e)) | ||
})?; | ||
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Ok(image_gray.to_pyimage()) | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,24 @@ | ||
from pathlib import Path | ||
import kornia_rs as K | ||
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import numpy as np | ||
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def test_rgb_from_gray(): | ||
img: np.ndarray = np.array([[[1]]], dtype=np.uint8) | ||
img_rgb: np.ndarray = K.rgb_from_gray(img) | ||
assert img_rgb.shape == (1, 1, 3) | ||
assert np.allclose(img_rgb, np.array([[[1, 1, 1]]])) | ||
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def test_bgr_from_rgb(): | ||
img: np.ndarray = np.array([[[1, 2, 3]]], dtype=np.uint8) | ||
img_bgr: np.ndarray = K.bgr_from_rgb(img) | ||
assert img_bgr.shape == (1, 1, 3) | ||
assert np.allclose(img_bgr, np.array([[[3, 2, 1]]])) | ||
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def test_gray_from_rgb(): | ||
img: np.ndarray = np.array([[[1, 1, 1]]], dtype=np.uint8) | ||
img_gray: np.ndarray = K.gray_from_rgb(img) | ||
assert img_gray.shape == (1, 1, 1) | ||
assert np.allclose(img_gray, np.array([[[1]]])) |
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