IMAGE PROCESSING TECHNIQUES

Part 1: IMAGE PROCESSING 1 IMAGE PROCESSING TECHNIQUESThis part deals with the formation, acquisition and PROCESSING of images. Its contents can bebest represented as a diagram where the evolution of the considered information (images)and the processes involved are Level ImageImage Acquisitionelectron-solid interactiondetection of elastically & in-elastically scattered electronsImage EnhancementImage SegmentationBinary ImageDataImage Measurementanalog-to-digital 1: IMAGE PROCESSING Basics of IMAGE formationSince only the images obtained by a scanning electron microscope (SEM) and a transmissionelectron microscope (TEM) were used in this work and since both TECHNIQUES are well-established, only a brief introduction is given on the principles and instrumentation of SEMand TEM aiming to show what kind of information is expressed through the imagesobtained by these IMAGE is the optical representation of an object illuminated by a radiation source.

electron images based on atomic number differences. Since the backscattered electrons are coming from deeper in the specimen (Fig. 1.1.1b), the interaction volume is much larger than the beam diameter and, as a consequence, the resolution in the backscattered image is at most of the order of 200 nm.

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  Image, Processing, Technique, Atomic, Electron, Resolution, Image processing techniques

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