Fig. 2From: Residual strain analysis with digital image correlation method for subsurface damage evaluation of hinoki (Chamaecyparis obtusa) finished by slow-speed orthogonal cuttingRegion of interest (ROI) and reference pixels in a reference image. The yellow colored area represents the ROI. The red dashed line represents the path of the cutting edge. Each white square represents a reference pixel. The red rectangle represents the subset of the reference pixel marked in red (color figure online)Back to article page