дешифрування

Images used as a stochastic signal are among the most commonly used types of information. Accordingly, the actual task is to protect such images from unauthorized access and use. This leads to the use of known classic encryption methods in the case of image encryption. Offered algorithms of encryption-decryption are intended for the use of images in grayscale and are based on using the ideas of basic RSA algorithm. Encryption – decryption can be carried out with extra noising and without too.

Described combination of elements of the RSA algorithm and a bit-wise operations for the joint use for encryption - interpretation of images. Encryption - decryption is performed without additional noise.

Described combination of elements of the RSA algorithm and a bit-wise operations for
the joint use for encryption – interpretation of images. Encryption - decryption is performed
without additional noise.

Objective. The aim of this study is a reasonable definition of the conditions which must be satisfied for digital aerial image for high-quality recognition objects of rail transport with the aim of creating a plan with scale of 1:500, and the experimental study of the quality of rail transport objects interpretation on digital aerial images. Method and results. For inventory of land and rail transport objects based on the use of digital aerial survey it is necessary to ensure receiving  of quantitative and qualitative characteristics of the objects that meet the requirements of the branch.