shunfurh 于 2017.08.26 23:22 提问
- Picture Handling
Xiaoyao likes to play with pictures very much. When he got a picture, he will use rectangle selection tool to select an area ((x1, y1) to (x2, y2), inclusively) and perform these operations:
Invert: For any pixel with value v in selected area, change v to -v.
Lighten: For any pixel with value v in selected area, increase v by 1.
Darken: For any pixel with value v in selected area, decrease v by 1.
Flip Horizontal: For any pixel at (x, y) in selected area, replace its value with pixel at (x1 + x2 - x, y).
Flip Vertical: For any pixel at (x, y) in selected area, replace its value with pixel at (x, y1 + y2 - y).
After several operations, Xiaoyao wonders what value a pixel at specified position is. Could you tell him?
There are multi cases (no more than 5). Please proceed to the end of input. Each case is like below:
The first line contains two integers W and H, indicating the width and height of the picture. W and H are both between 1 and 255, inclusively.
Following H lines, each line contains W integers, indicating the value of pixels. The first integer of the first line in these H lines is the value of pixel at (0, 0) and the last integer is the value of pixel at (W-1, H-1). All these values are between -105 and 105, inclusively.
Then, a line with one integer M(0 <= M <= 105).
Following M lines, each line contains 5 integers: x1 y1 x2 y2 op, indicating the selected area and the operation. (0 <= x1 <= x2 < W, 0 <= y1 <= y2 < H, 1 <= op <= 5). If op is 1, it means Invert operation. If op is 2, it means Lighten operation. The others follow by analogy. You should follow the order of the input to perform operations.
Finally, there is a line with two integers x and y. (0 <= x < W, 0 <= y < H) Your task is to output the value of pixel at (x, y) after performing above operations.
For each case, output a single line containing one integer which is the value of pixel at (x, y) at last.
1 2 3
4 5 6
0 0 1 1 1
1 0 2 1 4
- PAMI2008 Stereo matching with color-weighted correlation,hierarchical belief propagation and occlusion handling