This paper presents a novel approach for edge detection and concatenation. It applies the proposed method on a set of optical microscopy images of aluminium alloy Al 99.5% (ENAW1050A) samples with different grain size values. The performance of the proposed approach is evaluated based on the intercept method and compared with the manual grain size determination method. Edge detection filters have proven inefficient in grain boundaries’ detection of the presented microscopy images. To some extent only the Canny edge-detection filter was able to compute grain boundaries of lower-resolution images adequately, while the presented method proved to be superior, especially in high-resolution images. The proposed method has proven its applicability, and it implies higher automatisation and lower processing times compared to manual optical microscopy image processing.

中文翻译：

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通过边缘检测和串联确定单相材料中的晶粒尺寸

本文提出了一种新颖的边缘检测和级联方法。它将所提出的方法应用于一组具有不同晶粒度值的铝合金Al 99.5％（ENAW1050A）样品的光学显微镜图像上。该方法的性能基于拦截方法进行了评估，并与手动粒度确定方法进行了比较。边缘检测滤光片已被证明在所呈现的显微图像的晶界检测中效率低下。在某种程度上，只有Canny边缘检测滤波器能够充分计算出较低分辨率图像的晶界，而所提出的方法被证明是优越的，尤其是在高分辨率图像中。所提出的方法已经证明了其适用性，