CORROSION ASSESSMENT APPARATUS AND METHOD

摘要

This invention relates to an apparatus and a method for assessing corrosion. In particular this invention relates to the assessment of corrosion levels on pipework in offshore environments. A method of analysing the corrosion levels on a surface of a structure comprises the steps of capturing a plurality of digital images including the surface of the structure, the images comprising individual frames of a continuous video, and analysing each of said plurality of images. The step of analysing each image comprises selecting an area of interest within an image, assigning a number value to each pixel within the area of interest, the number value corresponding to the colour of that pixel, calculating, from the number values of the pixels, a number average for the image, and comparing the number average for the image to a set of reference number averages corresponding to a set of standard corrosion levels to determine a corrosion level for the image.