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ScaleImageCalculator support same input&output formats scale and crop

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This commit is contained in:
mapleyuan 2020-11-05 21:30:18 +08:00
parent f15da632de
commit 7ff8451dc8
1 changed files with 15 additions and 5 deletions
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12
mediapipe/calculators/image/scale_image_calculator.cc
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@ -434,8 +434,9 @@ ScaleImageCalculator::~ScaleImageCalculator() {}
// TODO Remove these conditions.
RET_CHECK(output_format_ == ImageFormat::SRGB ||
(input_format_ == output_format_ &&
output_format_ == ImageFormat::YCBCR420P))
output_format_ == ImageFormat::YCBCR420P) || output_format_ == ImageFormat::SRGBA || output_format_ == ImageFormat::SBGRA || output_format_ == ImageFormat::GRAY8)
<< "Outputting YCbCr420P images from SRGB input is not yet supported";
RET_CHECK(input_format_ == output_format_ ||
input_format_ == ImageFormat::YCBCR420P)
<< "Conversion of the color space (except from "
@ -681,9 +682,18 @@ ScaleImageCalculator::~ScaleImageCalculator() {}
} else {
// Upscale. If upscaling is disallowed, output_width_ and output_height_ are
// the same as the input/crop width and height.
if(output_format_ == ImageFormat::SRGB || output_format_ == ImageFormat::YCBCR420P) {
image_frame_util::RescaleImageFrame(
*image_frame, output_width_, output_height_, alignment_boundary_,
interpolation_algorithm_, output_frame.get());
} else {
cv::Mat input_mat = ::upipe::formats::MatView(image_frame);
output_frame->Reset(image_frame->Format(), output_width_, output_height_,
alignment_boundary_);
cv::Mat output_mat = ::upipe::formats::MatView(output_frame.get());
cv::resize(input_mat, output_mat, cv::Size(output_width_, output_height_), 0.0, 0.0, interpolation_algorithm_);
}
if (interpolation_algorithm_ != -1) {
cc->GetCounter("Upscales")->Increment();
}