We use satellite imagery of high spatial resolution (IKONOS, 1-4m) to investigate the texture characteristics of regions covered by the Amazon rainforest and deforested areas of the Biological Reserve Rebio Jarú in Rondônia (10º05'S 10º19'S and 61º35'W 61º57'W). Our aim is to determine the possible existence of patterns of scale variability of the surface texture in both regions, covered by forest, and deforested. The detection of characteristics of texture scale variability was performed by using a methodology based on the application of the Continuous Wavelet Two-Dimensional Morlet's Transform. The results suggest the existence of possible preferential axes in the texture patterns of forested areas. Moreover, differences are observed in the patterns of the scale variability of the texture in the areas covered by forest and deforested, which have presented distinct values of the scale variance and kurtosis, above a certain threshold length scale, for different horizontal axes defined on the satellite image.
two-dimensional wavelet transform; Amazon forest; horizontal heterogeneity; remote sensing; satellite IKONOS; variability in scale texture
