Create A Function That Pulls A Picture From A URL And Create

createa Function That Pulls A Picture From a Url And Creates A Thumb

Create a function that pulls a picture from a URL and creates a thumbnail saved on your local machine. Since this assignment specifies the picture should be saved as a "thumbnail," the full answer should include a function that decreases the image to a thumbnail size (saveThumbnail2). However, if the picture pulled from a URL was a thumbnail originally, your function should just save the image without resizing (saveThumbnail1). Review the program presented in Ch. 13.2 Program 163, "Writing Programs to Generate HTML," of Introduction to Computing and Programming in Python. Zip your Python .py file and submit the.zip file so the code can be validated.

Given a folder with images in it, create an HTML page named index.html that contains links to each JPEG file in the directory as follows: Write a function that creates a string of the path to a directory. Generate a thumbnail (half the size) copy of each image. Use makeEmptyPicture to create a blank picture in the correct size, then scale down the original picture into the blank picture. Name the new image "half-" + the original filename (e.g., if the original filename was fred.jpg, save the half-size image as half-fred.jpg). The anchor in the link to each full-size picture should be the half-size image. Review Ch. 13, "Making Text for the Web," of Introduction to Computing and Programming in Python. Zip your Python .py file and submit the.zip file so the code can be validated.

Paper For Above instruction

The task involves developing Python programs to manipulate images and generate HTML content, focusing on creating thumbnails from images either fetched from URLs or stored locally. The first part requires writing a Python function that downloads an image from a specified URL, determines whether to resize it based on whether it is already a thumbnail, and then saves it locally. The resizing should reduce the image to a thumbnail size, typically half or a predefined small dimension. If the original image is actually a thumbnail, the program should detect this and simply save it without resizing. This entails analyzing dimensions or naming conventions to decide whether resizing is necessary. Reference to the program in Chapter 13.2, Program 163, of "Introduction to Computing and Programming in Python," provides guidance for generating HTML content dynamically and manipulating images using Python libraries such as PIL (Python Imaging Library) or its successor, Pillow.

In the second part, the program must handle a directory of JPEG images. It requires creating an HTML file, index.html, that displays links to each JPEG image. For each image, a smaller, half-sized version should be generated by scaling down the original. Using functions such as makeEmptyPicture (or equivalent in Pillow), a blank image canvas is created matching the scaled-down dimensions, into which the original image is scaled. The resized images are saved with a filename prefixed with "half-", for example, "half-fred.jpg." The HTML links should embed the small images as anchors pointing to the full-sized images. This process facilitates creating a web gallery, allowing users to click on thumbnails for larger views.

These tasks require understanding image processing, file handling, and dynamic HTML generation in Python. Libraries such as Pillow facilitate image resizing and manipulation efficiently. Proper handling includes verifying image formats, maintaining aspect ratios during scaling, and constructing valid HTML links. After writing the Python scripts, they must be zipped and submitted as per instructions for validation. The approach aligns with best practices for web graphics, emphasizing automation and scalability in managing image galleries and thumbnails.

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