加入了图像矫正函数
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@ -6,6 +6,7 @@ import numpy as np
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import json
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import json
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import argparse
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import argparse
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def calibrate_camera(imgFolder, chessboardSize, squareSize):
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def calibrate_camera(imgFolder, chessboardSize, squareSize):
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# 设置输出目录
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# 设置输出目录
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outputFolder = osp.join(imgFolder, "output")
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outputFolder = osp.join(imgFolder, "output")
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@ -37,7 +38,8 @@ def calibrate_camera(imgFolder, chessboardSize, squareSize):
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# 查找角点
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# 查找角点
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ret, corners = cv.findChessboardCorners(gray, (board_w, board_h), None)
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ret, corners = cv.findChessboardCorners(gray, (board_w, board_h), None)
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if ret:
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if ret:
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cv.cornerSubPix(gray, corners, (11, 11), (-1, -1), (cv.TERM_CRITERIA_EPS + cv.TERM_CRITERIA_MAX_ITER, 30, 0.001))
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cv.cornerSubPix(gray, corners, (11, 11), (-1, -1),
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(cv.TERM_CRITERIA_EPS + cv.TERM_CRITERIA_MAX_ITER, 30, 0.001))
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pointsWorld.append(board_grid)
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pointsWorld.append(board_grid)
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pointsPixel.append(corners)
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pointsPixel.append(corners)
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@ -77,6 +79,47 @@ def calibrate_camera(imgFolder, chessboardSize, squareSize):
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return mtx, dist
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return mtx, dist
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def undistort_image(img, mtx, dist):
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h, w = img.shape[:2]
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newcameramtx, roi = cv.getOptimalNewCameraMatrix(mtx, dist, (w, h), 1, (w, h))
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dst = cv.undistort(img, mtx, dist, None, newcameramtx)
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x, y, w, h = roi
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dst = dst[y:y + h, x:x + w]
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return dst
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def undistort_images(imgFolder, mtx, dist):
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imgPaths = []
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for extension in ["jpg", "png", "jpeg"]:
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imgPaths += glob.glob(osp.join(imgFolder, "*.{}".format(extension)))
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if len(imgPaths) == 0:
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print("No images found!")
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return
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outputFolder = osp.join(imgFolder, "undistorted_images")
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if not osp.exists(outputFolder):
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os.makedirs(outputFolder)
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for imgPath in imgPaths:
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img = cv.imread(imgPath)
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dst = undistort_image(img, mtx, dist)
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cv.imwrite(osp.join(outputFolder, osp.basename(imgPath)), dst)
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print("Undistorted images saved to: ", outputFolder)
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def calibrate_cameras(imgFolder, chessboardSize, squareSize):
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mtxs = []
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dists = []
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for folder in glob.glob(osp.join(imgFolder, "*")):
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if not osp.isdir(folder):
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continue
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mtx, dist = calibrate_camera(folder, chessboardSize, squareSize)
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mtxs.append(mtx)
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dists.append(dist)
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return mtxs, dists
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def write_json_data(mtx, dist, outputFolder):
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def write_json_data(mtx, dist, outputFolder):
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data = {
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data = {
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"intrinsic_matrix": mtx.tolist(),
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"intrinsic_matrix": mtx.tolist(),
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@ -85,7 +128,14 @@ def write_json_data(mtx, dist, outputFolder):
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with open(osp.join(outputFolder, "calibration.json"), "w") as f:
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with open(osp.join(outputFolder, "calibration.json"), "w") as f:
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json.dump(data, f, indent=4)
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json.dump(data, f, indent=4)
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if __name__ == "__main__":
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mtx, dist = calibrate_camera("./test/intri_imgs", (11, 8), 60)
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if __name__ == "__main__":
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write_json_data(mtx, dist, "./test/intri_imgs/output")
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parser = argparse.ArgumentParser()
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parser.add_argument("imgFolder", help="Folder containing images for calibration")
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parser.add_argument("--chessboardSize", help="Size of chessboard (rows, cols)", default="11,8")
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parser.add_argument("--squareSize", help="Size of square in chessboard", default=60)
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args = parser.parse_args()
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chessboardSize = tuple(map(int, args.chessboardSize.split(",")))
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squareSize = float(args.squareSize)
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