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#[cfg(feature = "image_0-23")]
mod with_image_0_23 {
use crate::image;
use crate::tch;
use crate::{common::*, FromCv, IntoCv, TchTensorAsImage, TchTensorImageShape, TryFromCv};
use std::ops::Deref;
impl<P, Container> FromCv<&image::ImageBuffer<P, Container>> for TchTensorAsImage
where
P: image::Pixel + 'static,
P::Subpixel: 'static + tch::kind::Element,
Container: Deref<Target = [P::Subpixel]>,
{
fn from_cv(from: &image::ImageBuffer<P, Container>) -> Self {
let (width, height) = from.dimensions();
let channels = P::CHANNEL_COUNT;
let tensor =
tch::Tensor::of_slice(&*from).view([width as i64, height as i64, channels as i64]);
TchTensorAsImage {
tensor,
kind: TchTensorImageShape::Whc,
}
}
}
impl<P, Container> FromCv<image::ImageBuffer<P, Container>> for TchTensorAsImage
where
P: image::Pixel + 'static,
P::Subpixel: 'static + tch::kind::Element,
Container: Deref<Target = [P::Subpixel]>,
{
fn from_cv(from: image::ImageBuffer<P, Container>) -> Self {
Self::from_cv(&from)
}
}
impl TryFromCv<&image::DynamicImage> for TchTensorAsImage {
type Error = Error;
fn try_from_cv(from: &image::DynamicImage) -> Result<Self, Self::Error> {
use image::DynamicImage as D;
let tensor = match from {
D::ImageLuma8(image) => image.into_cv(),
D::ImageLumaA8(image) => image.into_cv(),
D::ImageRgb8(image) => image.into_cv(),
D::ImageRgba8(image) => image.into_cv(),
D::ImageBgr8(image) => image.into_cv(),
D::ImageBgra8(image) => image.into_cv(),
_ => bail!("cannot convert an image with u16 components to a tensor"),
};
Ok(tensor)
}
}
impl TryFromCv<image::DynamicImage> for TchTensorAsImage {
type Error = Error;
fn try_from_cv(from: image::DynamicImage) -> Result<Self, Self::Error> {
Self::try_from_cv(&from)
}
}
}
#[cfg(feature = "image_0-24")]
mod with_image_0_24 {
use crate::image;
use crate::tch;
use crate::{common::*, FromCv, IntoCv, TchTensorAsImage, TchTensorImageShape, TryFromCv};
use std::ops::Deref;
impl<P, Container> FromCv<&image::ImageBuffer<P, Container>> for TchTensorAsImage
where
P: image::Pixel + 'static,
P::Subpixel: 'static + tch::kind::Element,
Container: Deref<Target = [P::Subpixel]>,
{
fn from_cv(from: &image::ImageBuffer<P, Container>) -> Self {
let (width, height) = from.dimensions();
let channels = P::CHANNEL_COUNT;
let tensor =
tch::Tensor::of_slice(&*from).view([width as i64, height as i64, channels as i64]);
TchTensorAsImage {
tensor,
kind: TchTensorImageShape::Whc,
}
}
}
impl<P, Container> FromCv<image::ImageBuffer<P, Container>> for TchTensorAsImage
where
P: image::Pixel + 'static,
P::Subpixel: 'static + tch::kind::Element,
Container: Deref<Target = [P::Subpixel]>,
{
fn from_cv(from: image::ImageBuffer<P, Container>) -> Self {
Self::from_cv(&from)
}
}
impl TryFromCv<&image::DynamicImage> for TchTensorAsImage {
type Error = Error;
fn try_from_cv(from: &image::DynamicImage) -> Result<Self, Self::Error> {
use image::DynamicImage as D;
let tensor = match from {
D::ImageLuma8(image) => image.into_cv(),
D::ImageLumaA8(image) => image.into_cv(),
D::ImageRgb8(image) => image.into_cv(),
D::ImageRgba8(image) => image.into_cv(),
D::ImageRgb32F(image) => image.into_cv(),
D::ImageRgba32F(image) => image.into_cv(),
_ => bail!("the color type {:?} is not supported", from.color()),
};
Ok(tensor)
}
}
impl TryFromCv<image::DynamicImage> for TchTensorAsImage {
type Error = Error;
fn try_from_cv(from: image::DynamicImage) -> Result<Self, Self::Error> {
Self::try_from_cv(&from)
}
}
}