Extract significant features surface

Hi all I tried for these images classical LBP but accuracy after extraction is about %70. That kind of texture features should be determinative for these surfaces. There 4 images and and I divide into them sub images which are 64*64. These subimages all are different actually. It should be challenging but i need ideas

[Chad Greene]

This question is rather unclear. What is LBP? What do you mean by extraction? What is 70%? Be very clear about your overall goal, and give complete context for the details of your question.

[ali]

Local binary pattern for feature extraction. An I use this features in classification. Accuracy of the result is %70. My goal is classify these images with features( I have to extract significant and determinitave faetures from these images)