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64 lines
2.4 KiB
Objective-C
64 lines
2.4 KiB
Objective-C
// Copyright (c) 2026 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface PDBPerspectiveCropOutput : NSObject
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@property(nonatomic) NSData *rgbData;
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@property(nonatomic) NSInteger width;
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@property(nonatomic) NSInteger height;
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@end
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@interface PDBOpenCVImageBridge : NSObject
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/// `cv::resize(..., INTER_LINEAR)` on 8-bit **3-channel** row-major data
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/// (`CV_8UC3`; stores BGR channel order for OpenCV).
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+ (NSData *)resizeRGBU8:(NSData *)data
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srcWidth:(NSInteger)srcWidth
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srcHeight:(NSInteger)srcHeight
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dstWidth:(NSInteger)dstWidth
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dstHeight:(NSInteger)dstHeight NS_SWIFT_NAME(resizeRGBU8(_:srcWidth:srcHeight:dstWidth:dstHeight:));
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/// Pad RGB image to `padWidth` x `padHeight` with zeros on bottom/right.
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+ (NSData *)padRGBU8:(NSData *)data
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width:(NSInteger)width
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height:(NSInteger)height
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padWidth:(NSInteger)padWidth
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padHeight:(NSInteger)padHeight
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NS_SWIFT_NAME(padRGBU8(_:width:height:padWidth:padHeight:));
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/// Minimum-area rectangle, corner ordering, perspective warp (`INTER_CUBIC`,
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/// `BORDER_REPLICATE`), then 90° CCW rotation when height/width ≥ 1.5. Input
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/// buffer is row-major **BGR**.
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+ (nullable PDBPerspectiveCropOutput *)
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quadTextLineCropBGR:(NSData *)src
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srcWidth:(NSInteger)srcWidth
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srcHeight:(NSInteger)srcHeight
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quad:(NSArray<NSValue *> *)quad
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NS_SWIFT_NAME(quadTextLineCropBGR(_:srcWidth:srcHeight:quad:));
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/// Mean of the float probability map inside the quadrilateral: `fillPoly` mask
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/// then `cv::mean`.
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+ (float)meanPredInQuad:(NSData *)pred
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width:(NSInteger)width
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height:(NSInteger)height
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box:(NSArray<NSArray<NSNumber *> *> *)box
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NS_SWIFT_NAME(meanPredInQuad(_:width:height:box:));
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@end
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NS_ASSUME_NONNULL_END
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