/**
 * Copyright 2019-2020 Huawei Technologies Co., Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef GE_OP_RPN_OPS_H
#define GE_OP_RPN_OPS_H

#include "graph/operator_reg.h"
namespace ge {
/**
*@brief Iteratively removes lower scoring boxes which have an IoU greater than
* iou_threshold with higher scoring box according to their
* intersection-over-union (IoU).

*@par Input:
* @li box_scores: 2-D tensor with shape of [N, 8], including proposal boxes and
* corresponding confidence scores.

* @par Attributes:
* @li iou_threshold: An optional float. The threshold for deciding whether boxes
* overlap too much with respect to IOU.

* @par Outputs:
* @li selected_boxes: 2-D tensor with shape of [N,5], representing filtered
* boxes including proposal boxes and corresponding confidence scores.
* @li selected_idx: 1-D tensor with shape of [N], representing the index of
* input proposal boxes.
* @li selected_mask: 1-D tensor with shape of [N], the symbol judging whether
* the output proposal boxes is valid.

* @attention Constraints:
* The 2nd-dim of input box_scores must be equal to 8.\n
* Only supports 2864 input boxes at one time.\n

*/
REG_OP(NMSWithMask)
    .INPUT(box_scores, TensorType({DT_FLOAT, DT_FLOAT16}))
    .OUTPUT(selected_boxes, TensorType({DT_FLOAT, DT_FLOAT16}))
    .OUTPUT(selected_idx, TensorType({DT_INT32}))
    .OUTPUT(selected_mask, TensorType({DT_UINT8}))
    .ATTR(iou_threshold, Float, 0.5)
    .OP_END_FACTORY_REG(NMSWithMask)
}  // namespace ge

#endif // GE_OP_TRAINING_OPS_H
