The specific steps to improve the picture pixels are as follows:

1. First, we find the picture to improve the pixel of the picture, click the right mouse button, select the opening method, and then select the drawing.

2. Now we can see that the pixel before image processing is 3 12*4 16.

3. Then we click "Resize" in the upper left corner.

4. Select the pixels to be resized, and select "Maintain Aspect Ratio".

5. Enter horizontal pixels and vertical pixels, and try to keep the aspect ratio unchanged when resizing.

6. Click OK and the picture pixels will be adjusted. Save it.