RGB Puzzle Platformer Mac OS
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You can’t see pixels in the pictures you browse at ordinary times:
When the picture is enlarged, it can be seen that the picture is composed of pixels:
The color of each pixel can be expressed in RGB:
Since the picture is composed of pixels, and the color of pixels can be represented by RGB, then we can use RGB to spell our own picture!
1. Set goals
This is the picture we want to spell with RGB pixels:
Rainbow color:
| Color name | RGB | hexadecimal | RGB24 binary |
|---|---|---|---|
| red | 255, 0, 0 | 0XFF0000 | 11111111 00000000 00000000 |
| orange | 255, 165, 0 | 0XFFA500 | 11111111 10100101 00000000 |
| yellow | 255, 255, 0 | 0XFFFF00 | 11111111 11111111 00000000 |
| green | 0, 255, 0 | 0X00FF00 | 00000000 11111111 00000000 |
| young | 0, 127, 255 | 0X007FFF | 00000000 01111111 11111111 |
| blue | 0, 0, 255 | 0X0000FF | 00000000 00000000 11111111 |
| purple | 139, 0, 255 | 0X8B00FF | 10001011 00000000 11111111 |
2. Analysis and implementation ideas
RGB24 format is used to represent the pixel color value. Each pixel is represented by 24 bits, which takes up three bytes.
Resolution 7×7 rainbow picture pixel arrangement:
Resolution 7×7 rainbow picture pixel RGB binary:
Best Puzzle Platformers
7×7 is just for the convenience of analysis. We need to spell 700×700 pixel pictures when we start
3. hands-on practice
Save the RGB24 binary of the pixel to a file:
Running the above code will generate the rainbow-700×700.rgb24 file
Check generated files
- 700×700 = 490000 pixels
- Each pixel color is encoded with RGB24, and each pixel is represented with 24 bits, accounting for 3 bytes
- 490000 x 3 = 147000 bytes (b)
Feeling generated the right RGB24 format picture.
The most direct way to confirm that the generated RGB24 format image is correct is to open it with the image viewing software. However, ordinary image viewing software does not support the RGB24 format. At this time, we will use the professional multimedia framework ffmpeg.
Download the ffplay tool
Ffmpeg tool download
Download ffmpeg static toolkit according to your own system.
Rgb Puzzle Platformer Mac Os Catalina
Take Mac OS as an example:
Open RGB24 picture with ffplay
Preview:
Congratulations!
Successfully spell a picture with pixels!
code:
rgb-pixel
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