If you want to compare with the original image, press and hold the image.
Click Done if you are satisfied.
8. How to convert images into black and white images in Photos app on iPhone / iPad
Open the Photos app at the main screen of the iPhone / iPad.
Find the image you want to turn into black and white, then open it.
Click on the icon with 3 dots located on 3 small parallel lines at the bottom of the screen.
Click on the sun-shaped icon at the bottom of the screen.
Choose B&W (D&T) .
Drag the small red bar to the right and left to adjust the image's black and white.
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If you want to compare with the original image, press and hold the image.
Click Done if you are satisfied.
9. How to adjust advanced brightness, color or black and white of Photos in Photos app on iPhone / iPad
Open the Photos app at the main screen of the iPhone / iPad.
Find the photo you want to adjust, then open it.
Click on the icon with 3 dots located on 3 small parallel lines at the bottom of the screen.
Click on the sun-shaped icon at the bottom of the screen.
Click the down arrow icon located on the right side of Light (Color) , Color (color) or B&W (D&T) .
Select the item name you want to adjust (brightness, contrast, saturation .).
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Drag the small red bar to the right and left to adjust the level you want.
If you want to compare with the original image, press and hold the image.
Click Done if you are satisfied.
10. How to restore the edited image to the original image in the Photos app on iPhone / iPad
Open the Photos app at the main screen of the iPhone / iPad.
Find the image you want to restore to the original image, then open it.
Click on the icon with 3 dots located on 3 small parallel lines at the bottom of the screen.
Click on the word Revert (recovery) at the bottom right of the screen.
Select Revert to Original (restore to the original image) .
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11. How to use the filter function (color filter) available in Photos app on iPhone / iPad
For previous iOS versions, Photos apps do not have filters, so users have to use other third-party apps to filter colors and add photo effects to make your photos look better with Light and different tones. However, with the recent improvements of Camera Apple, we can use this function right in Photos app on iPhone / iPad.
Reference: What is a filter? How to use Filter in photography?
Open the Photos app at the main screen of the iPhone / iPad.
Find the picture you want to edit, then open it.
Click on the icon with 3 dots located on 3 small parallel lines at the bottom of the screen.
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Click on the Filters icon with 3 circles intersecting.
Select the effect you want to add to the photo.
Click Done.
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If the effects inside the Photos app do not satisfy you, you can download some other photography apps on the App Store to use.
12. How to delete red eyes when using flash in Photos app on iPhone / iPad
Using Flash when taking photos will be useful in some cases, but sometimes its consequences will be to leave red eyes in the picture. That's why Apple has released red-eye detection and deletion in recent iOS versions. And especially, you won't be able to use this feature if there are no red eyes in the image.
Open the Photos app at the main screen of the iPhone / iPad.
Find the picture you want to edit, then open it.
Click on the icon with 3 dots located on 3 small parallel lines at the bottom of the screen.
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Click on the eye-shaped icon with a diagonal across.
Click the red eye inside the picture.
Click Done.
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At this time, the application will automatically fix "red eye" disease in the picture for you. No need to worry when shooting Flash anymore!