How many pixels is a good photo?

Dpi is not a specific pixel, but a proportional relationship. 300DPI= 300 pixels per inch. Because DPI is proportional, DPI only affects the final photo print size or display size. Does not affect the quality of the photo itself.

way

1.PS, click the file tab.

2. Select the "Open" option in the extended menu.

3. After selecting the picture to adjust, click the "Open" button.

4. After opening the picture, click the "Picture" tab above.

5. In the expanded image menu, select the image size option.

In the pop-up window, you can see that the resolution is the default value, so you can change it to 300.

7. Click the OK button.

Like photographic photos, digital images also have continuous shadows. If you enlarge the image several times, you will find that these continuous tones are actually composed of many small squares with similar colors, which are the smallest unit of the image-pixels.

This smallest graphic unit usually displays a single coloring point on the screen. The higher the pixel, the richer the sample and the more realistic the color is.