Overview
Description
The DRP library is a set of configured firmware ‘tiles’ with various functions. By loading the firmware into the DRP, these functions can be processed in hardware.
Features
- The DRP library can enable functions to be processed many times faster than can be achieved by traditional CPU processing. Therefore, it can speed up a whole system.
- Firmware can be dynamically loaded into the DRP. It is possible to exchange each function in hardware during system operation. Loading takes a few hundred microseconds.
- Renesas provides a DRP driver that can easily control loading and execution using the firmware. This driver makes it easy to use the DRP library in your solution.
Target Devices
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Additional Details
What is Dynamically Reconfigurable Process (DRP) Library?
- The DRP library is a set of configured firmware 'tiles' with various functions.
By loading the firmware into the DRP, these functions can be processed in hardware.
Advantages of the DRP Library
- The DRP library can enable functions to be processed many times faster than can be achieved by traditional CPU processing. Therefore, it can speed up a whole system.
- Firmware can be dynamically loaded into the DRP. It is possible to exchange each function in hardware during system operation. Loading takes a few hundred microseconds.
- Renesas provides a DRP driver that can easily control loading and execution using the firmware. This driver makes it easy to use the DRP library in your solution.
DRP Basic Sample Programs
RZ/A2M FreeRTOSTM Software Package, RZ/A2M Simple Applications Package contains the following sample programs using the DRP library.
- DRP Basic Operation Sample Program
Converts the input image from MIPI camera to grayscale image using DRP Library and outputs to display. - DRP Parallel Operation Sample Program
Converts the input image from MIPI camera to grayscale image at high speed using parallel operation function of DRP Library and outputs to display. - DRP Dynamic Loading Sample Program 1
Detects the edges of the input image from MIPI camera by Canny method using DRP Library and outputs to display. - DRP Dynamic Loading Sample Program 2
Detects the corners of the input image from MIPI camera by the Harris corner detector using DRP Library and outputs to display. - DRP Dynamic Loading Sample Program 3
After detecting the edges of the input image from MIPI camera by Canny method using DRP Library, performs contour detection using findcontours application.
The results output to display.
(Application Note: RZ/A2M Group Object Detection Sample Program Application Note (PDF | English, 日本語)) - DRP Simple ISP Sample Program 1
Correct the color and noise of the input image from MIPI camera using DRP Library, and the image with high color reproducibility is output to the Display.
(Application Note: RZ/A2M Group Color and Image Quality Correction Sample Program Application Note (PDF | English, 日本語))
Function List of the DRP Library
The DRP library supports following functions. The function names in bold are added in the RZ/A2M Software Package V8.00.
| Category | Function Name | Outline | Version |
|---|---|---|---|
| Image processing | Simple ISP | Implements simple image signal processor (ISP) functionality using pipeline processing | 1.02 |
| Simple ISP with object detection by color (HSV) | Simple ISP that implements object detection using color components of the target object | 1.00 | |
| Simple ISP with background subtraction | Simple ISP that extracts a moving object by using the background subtraction | 1.00 | |
| Simple ISP with object detection using sobel | Simple ISP that extracts an object having complex contours from multiple objects | 1.00 | |
| Simple ISP with distortion correction | Simple ISP that performs barrel distortion correction | 1.00 | |
| Simple ISP with scaling and normalization(32bit) | Simple ISP that implements pre-processing (floating-point conversion, normalization, and resizing) for AI inference | 1.00 | |
| Simple ISP with color calibration and 3DNR | Simple ISP that specializes in the output of images having high color-reproducibility through color-matrix correction and 3D noise reduction | 1.00 | |
| Image transformation | Bayer2Grayscale | Converts from RAW data acquired from CMOS to grayscale | 1.00 |
| Bayer2Rgb | Converts from RAW data acquired from CMOS to RGB | 1.00 | |
| Bayer2RgbColorCorrection | Converts from RAW data acquired from CMOS camera to RGB (With color correction) | 1.01 | |
| Argb2Grayscale | Converts from ARGB to grayscale | 1.00 | |
| BinarizationFixed | Converts the image to a binary image with a fixed threshold (fixed threshold) | 1.00 | |
| BinarizationAdaptive | Converts the image to a binary image with a dynamic threshold matching the surrounding image (adaptive threshold) | 1.00 | |
| BinarizationAdaptiveBit | Converts the image to a binary image with a dynamic threshold matching the surrounding image (adaptive threshold) (bit output) | 1.00 | |
| GammaCorrection | Corrects the image with gamma value | 1.01 | |
| Cropping | Crops a part of the image | 1.00 | |
| CroppingRgb | Crops a part of the image (RGB) | 1.01 | |
| ResizeBilinearFixed | Resizes the image (bilinear interpolation, scale factor: 2n) | 1.00 | |
| ResizeBilinearFixedRgb | Resizes the image (bilinear interpolation, scale factor: 2n) (RGB) | 1.01 | |
| ResizeBilinear | Resizes the image (bilinear interpolation, scale factor: any) | 1.00 | |
| ResizeNearest | Resizes the image (nearest neighbor interpolation, scale factor: any) | 1.00 | |
| ImageRotate | Rotates the image | 1.00 | |
| Affine | Performs parallel translation and linear transformation on the image | 1.00 | |
| Remap | Performs the image conversion using the X- and Y-coordinate map data | 1.00 | |
| Image filter | MedianBlur | Reduces the noise contained in the image | 1.00 |
| GaussianBlur | The image smoothing | 1.00 | |
| UnsharpMasking | The image sharpening | 1.00 | |
| Sobel | Creates the edge of the image using Sobel filter | 1.00 | |
| Prewitt | Creates the edge of the image using Prewitt filter | 1.00 | |
| Laplacian | Creates the edge of the image using Laplacian filter | 1.00 | |
| Dilate | Dilation of white part in the image | 1.00 | |
| Erode | Erosion of white part in the image | 1.00 | |
| Opening *1 | Removes noise from black portions by shrinkage (erosion) followed by expansion (dilation) | 1.00 | |
| Closing *1 | Removes noise from white portions by expansion (dilation) followed by shrinkage (erosion) | 1.00 | |
| Feature detection | CannyCalculate | Detects the edge of the image using the Canny method (performed by continuous processing of 2 functions) | 1.00 |
| CannyHysterisis | 1.00 | ||
| CornerHarris | Detects the corner contained in the image using the method devised by Chris Harris | 1.00 | |
| MinutiaeExtract | Extracts minutiae points of fingerprint ridge lines used in fingerprint recognition | 1.00 | |
| MinutiaeDelete | Deletes minutiae points of fingerprint ridge lines used in fingerprint recognition | 1.00 | |
| CircleFitting | Detects circle from the input image | 1.00 | |
| FindContours | Detects contours in the image and calculates its bounding rectangle | 1.01 | |
| Histograms | Histogram | Generates a histogram from the input image | 1.00 |
| HistogramNormalization | Normalizes the histogram of the image | 1.01 | |
| HistogramNormalizationRgb | Normalizes the histogram of the image (RGB) | 1.01 | |
| Other | ReedSolomon | Performs error correction using Reed-Solomon codes (fixed primitive polynomial) | 1.00 |
| ReedSolomonGf8 | Performs error correction using GF(28) Reed-Solomon codes | 1.00 | |
| Thinning | Outputs an image on which thinning has been performed | 1.00 | |
| ImageMerging | Merges two grayscale-images separately captured over different ranges | 1.00 |
(*1) This function can be executed by a combination of Dilate and Erode?
If you require functions not in the present DRP library for RZ/A2M, you can contact Renesas Support to discuss possible solutions.
For details on the DRP library/DRP driver, refer to the user's manual included in the software package.
Users manual:
- RZ/A2M Group DRP Library User's manual (PDF | English, 日本語)
- RZ/A2M Group DRP Driver User's Manual (PDF | English, 日本語)
Software package:
- RZ/A2M Group RZ/A2M Simple Applications Package (ZIP | English, 日本語)
- RZ/A2M Group RZ/A2M 2D Barcode Package (ZIP | English, 日本語)
- RZ/A2M Group RZ/A2M IRIS Package (ZIP | English, 日本語)
(Remark) FreeRTOSTM is a trademark of Amazon Web Services, Inc.