Capturing still images in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the camera module.

Raspberry Pi

from picamera import [1]

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ACamera

BPiCamera

Cpicamera

DCameraModule

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'picamera' instead of 'PiCamera'.

Using 'Camera' which is not the correct class name.

The PiCamera class is used to control the Raspberry Pi camera.

2fill in blank

medium

Complete the code to start the camera preview.

Raspberry Pi

camera = PiCamera()
camera.[1]()

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Ashow_preview

Bcapture

Cpreview_start

Dstart_preview

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'capture' which takes a photo, not starts preview.

Using 'preview_start' which is not a valid method.

The method start_preview() starts the camera preview window.

3fill in blank

hard

Fix the error in the code to capture an image.

Raspberry Pi

camera = PiCamera()
camera.capture('[1]')

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Aimage.jpg

Bcapture.jpg

Cphoto.png

Dpicture.bmp

Attempts:

3 left

💡 Hint

Common Mistakes

Using unsupported file extensions like '.bmp' which may not be supported.

Using names that do not end with an image extension.

The filename image.jpg is a common and valid name for saving a JPEG image.

4fill in blank

hard

Fill both blanks to capture an image with a delay.

Raspberry Pi

import time
camera = PiCamera()
camera.start_preview()
time.[1](5)
camera.[2]('photo.jpg')
camera.stop_preview()

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Asleep

Bpause

Ccapture

Dwait

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'pause' or 'wait' which are not valid time module functions.

Using 'start_preview' instead of 'capture' to take a photo.

Use time.sleep(5) to wait 5 seconds before capturing with camera.capture('photo.jpg').

5fill in blank

hard

Fill all three blanks to capture an image with resolution set.

Raspberry Pi

import time
camera = PiCamera()
camera.[1] = (1920, 1080)
camera.start_preview()
time.[2](3)
camera.[3]('high_res.jpg')
camera.stop_preview()

Drag options to blanks, or click blank then click option'

Aresolution

Bsleep

Ccapture

Dframerate

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'framerate' instead of 'resolution' to set image size.

Using 'wait' instead of 'sleep' for delay.

Using 'start_preview' instead of 'capture' to take the photo.

Set camera.resolution to change image size, wait with time.sleep(3), then capture with camera.capture('high_res.jpg').