Talk:Bilinear filtering

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We need images! Suggested:

• normal bilinear filtering, possibly both scaling down and scaling up.
• one showing how filtering fails when you scale down too far.
• one showing the abruptness.

[edit] Java Algorithm x_index and y_index

What exactly is the x_index and y_index? are they really just floor(u) and floor(v). they appear in the u_ratio and v_ratio formulae and are never used again.