| Subject | English | Portuguese |
| environ. | digital image processing technique | técnica digital de processamento de imagens |
| environ. | digital image processing technique | técnicas de processamento de imagens digitais |
| environ. | digital image processing technique Techniques employed in the calibration of image data, the correction or reduction of errors occurring during capture or transmission of the data and in various types of image enhancement-operations which increase the ability of the analyst to recognize features of interest | técnicas de processamento de imagens digitais |