Sentence examples for used gray level from inspiring English sources

Tang et al. used gray level projection to realize rapid segmentation of the rail surface region, but the algorithm has poor adaptability [7].

Machined surfaces obtained by performing mechanical grinding at varying machining conditions are analyzed using gray level co-occurrence matrix (GLC M, wavelet decomposition, photometric stereo and fusion reconstruction based texture analysis to study and benchmark performance of both statistical and topographical surface texture evaluation methods.

In their work, the mapping between different orientations (20°, 40°, and 60°) and frontal pose is built using gray level patches of faces.

Lee [6] and Riquelme et al. [18] used gray-level based k-means for segmenting images.

For example, Delp et al. used gray-level co-occurrence matrices (GLCM) [2, 3] features, variance/entropy, and discrete Fourier transform (DFT) [4] features to identify the printer source.

However, the case of using gray levels has an advantage in computational time.

The results in using (L^*a^*b^*) color space are more accurate than those in using gray levels.

When using gray-level images, however, accurate determination of cancellous bone stiffness was possible.

Here we use gray-level normalization to reduce the influence of the lighting conditions.

The statistical features were extracted using gray-level co-occurrence matrix (GLC M, also known gray-level spatial dependence matrix (GLSDM).

These subbands were obtained from wavelet decomposed; the statistical textural features such as energy, correlation, entropy, and homogeneity were extracted using gray-level co-occurrence matrix (GLC M.