BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 709

• Manufacturer Part Number: BMSKTOPASA900(DCE)
• Description: KIT STARTER TMPA900 USB JTAG
• Manufacturer: Toshiba
• Series: TOPASr
• Type: MCUr

Specifications of BMSKTOPASA900(DCE)

• Contents: Evaluation Board, Cable(s), Software and Documentation
• For Use With/related Products: TMPA900CMXBG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Scaling up processing examples
same sampling cycle (127 = 0x7F) for Examples 1 and 2.
--------------------------------------------
including correction processing:
•
•
Sampling cycles are specified in integers by dropping the fractional portion. This results in the
When data is sampled at every 127 pixels, sampling points occur as shown below.
Example 1 sampling point
First point:
Second point:
Third point:
254th point:
255th point:
256th point:
The following describes the examples of how to establish the setting for scaling up processing
Example 2: For scaling up 128 pixels to 255 pixels
image.
Therefore, the pixels after 32385 are not used and discarded.
Example 1: For scaling up 128 pixels to 256 pixels
Number of original pixels in the X direction: OX pixel
Number of after-scaled-up pixels in the X direction: GX pixel
⏐
(Sampling cycle)
In Example 1, the 256th sampling point is 32512, which is the last pixel of the original
Since Example 2 uses the same sampling cycle, the 255th sampling point is 32385.
=
=
=
=
=(Maximum number of interpolatable pixels) / (Number of after-scaled-up pixels)
= {(OX−1) × 256} ÷ GX
(127 × 256) ÷ 256
(32512) ÷ 256
127
(127 × 256) ÷ 255
(32512) ÷ 255
127.49...
0
127
254
32258
32385
32512
⏐
TENTATIVE
TMPA900CM- 708
TMPA900CM
2009-10-14