CSE 473/573作业代写、代写Python程序作业、代做Python编程作业、代写Python语言作业

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Project 1 of CSE 473/573
Due Time: 3PM Oct. 08 at Norton 112
Guidelines
1. Please write your programs using Python. Both Python 2 and Python 3 are OK (though we highly recommend
using Python 3).
2. For task 1 and 2, you should not use OpenCV library (the only two exceptions are cv2.imread() and
cv2.imshow(), two functions for reading and displaying an image.). You need to write the convolution code
ON YOUR OWN (You should not use any other libraries, which provide APIs for convolution or correlation.).
For task 3, you could use OpenCV library.
3. Images for all three tasks will be uploaded to Piazza on Monday (Sep. 17). You should ONLY use the images
uploaded to Piazza to test you programs and obtain results that you are to include in your report. Fig. 1, Fig.
2 and Fig. 3 are for illustration only. You should not take screenshots of them and use the screenshots to test
you programs and obtain any result that you are to include in your report.
4. Submit a project report of up to 15 pages (hard copy) by the due date. In the report, please provide the
image results and the source code. You also need to explain the proposed method for task 3. Please upload the
source code before the due date to Piazza for TA’s check.
5. You need to work on this project independently and plagiarism will be penalized.
1 Edge Detection [5 points]
Figure 1: Image for edge detection
Write programs to detect edges in Fig. 1 (along both x and y directions) using Sobel operator. In your report,
please include two resulting images, one showing edges along x direction and the other showing edges along y
direction.
2 Keypoint Detection [5 points]
Write programs to detect keypoints in an image according to the following steps, which are also the first three
steps of Scale-Invariant Feature Transform (SIFT).
1. Generate four octaves. Each octave is composed of five images blurred using Gaussian kernels. For each
octave, the bandwidth parameters σ (five different scales) of the Gaussian kernels are shown in Tab. 1.
2. Compute Difference of Gaussian (DoG) for all four octaves.
3. Detect keypoints which are located at the maxima or minima of the DoG images. You only need to provide
pixel-level locations of the keypoints; you do not need to provide sub-pixel-level locations.
In your report, please (1) include images of the second and third octave and specify their resolution (width ×
height, unit pixel); (2) include DoG images obtained using the second and third octave; (3) clearly show all the
1
Figure 2: Image for keypoint detection
Octave
Table 1: The bandwidth parameters σ (five different scales) of the Gaussian kernels used in the first step of
keypoint detection.
detected keypoints using white dots on the original image (4) provide coordinates of the five left-most detected
keypoints (the origin is set to be the top-left corner).
3 Cursor Detection [5 points + 3 bonus points]http://www.daixie0.com/contents/3/1826.html
Figure 3: Illustration of cursor detection task, which aims to locate the cursor highlighted in the red circle.
For the task of cursor detection, which aims to locate the cursor in an image, two sets of images and cursor
templates, named as ”Set A” and ”Set B”, will be provided to you. Set A is composed of a total number of
25 images and 1 cursor template. Set A is for task 1., i.e., the basic cursor detection which contributes to 5
points. Set B is composed of a total number of 30 images and 3 different cursor template. Set B is for task 2.,
i.e., which contributes to 3 bonus points.
1. Detect cursors in Set A. [5 points]
2. Detect cursors in Set B, which is more challenging. [3 bonus points]
Note that we will randomly select and run the code you submitted on a set of 20 withheld images to test the
performance of your cursor detection programs.

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