{"id":1338,"date":"2022-10-14T11:12:24","date_gmt":"2022-10-14T11:12:24","guid":{"rendered":"http:\/\/learnlearn.uk\/python\/?page_id=1338"},"modified":"2022-10-14T11:31:59","modified_gmt":"2022-10-14T11:31:59","slug":"python-image-editing-challenges","status":"publish","type":"page","link":"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/","title":{"rendered":"Python Image Editing Challenges"},"content":{"rendered":"
\n

Example Code<\/h2>\n
\n\n

Example Code<\/h3>\n

Here is some example code to help you get started!<\/p>\n

<\/p>\n

\n
from<\/span> PIL<\/span> import<\/span> Image\r\n\r\nim =<\/span> Image.<\/span>open('cat.jpg'<\/span>)\r\nim2 =<\/span> im.<\/span>resize((400<\/span>,300<\/span>),Image.<\/span>LANCZOS) #create a smaller copy<\/span>\r\nim2.<\/span>save('resize.jpg'<\/span>)\r\nfor<\/span> x in<\/span> range<\/span>(im2.<\/span>width):\r\n    for<\/span> y in<\/span> range<\/span>(im2.<\/span>height):\r\n        r,g,b =<\/span> im2.<\/span>getpixel((x,y))\r\n        r =<\/span> r +<\/span> 30<\/span>\r\n        g =<\/span> g +<\/span> 30<\/span>\r\n        b =<\/span> b +<\/span> 30<\/span>\r\n        \r\n        im2.<\/span>putpixel((x, y), (r, g, b))\r\n\r\nim2.<\/span>save('lighter.jpg'<\/span>)\r\n<\/pre>\n<\/div>\n\n<\/div>
Original<\/h2>\n
\n\n
Original Image<\/h3>\n
Here is the original image I will be working with so that you can compare the results.<\/p>\n
\"\"<\/p>\n\n<\/div>
Challenge 1<\/h2>\n
\n\n
Challenge 1 – Darker<\/h3>\n
Create a program that makes your image darker rather than lighter and saves the image as darker.jpg.<\/p>\n
Result:<\/strong><\/p>\n
\"\"<\/p>\n
 <\/p>\n\n<\/div>
2<\/h2>\n
\n\n
Challenge 2 – Grayscale<\/h3>\n
Create a program that converts the image to grayscale and saves it as ‘grayscale.jpg’<\/span><\/p>\n
Result:<\/strong><\/p>\n
\"\"<\/p>\n
 <\/p>\n\n<\/div>
3<\/h2>\n
\n\n
Challenge 3 – B&W<\/h3>\n
Create a program that converts the image to pure black and white and saves it as ‘bw.jpg’.<\/span><\/p>\n
Result:<\/strong><\/p>\n
\"\"<\/p>\n
 <\/p>\n
 <\/p>\n
 <\/p>\n\n<\/div>
4<\/h2>\n
\n\n
Challenge 4 – Invertor<\/h3>\n
Create a program that inverts all the colour channels in the image and saves it as ‘inverted.jpg’.<\/p>\n
Result:<\/strong><\/p>\n
\"\"<\/p>\n
 <\/p>\n\n<\/div>
5<\/h2>\n
\n\n
Challenge 5 – RGB Split<\/h3>\n
Create a program that splits the image into 3 different colour channels and saves a single colour copy of each image in ‘r.jpg’, ‘g.jpg’ and ‘b.jpg’<\/span><\/p>\n
Result:<\/strong><\/p>\n
\"\" \"\" \"\"<\/p>\n
 <\/p>\n\n<\/div>
6<\/h2>\n
\n\n
Challenge 6 – Increased Contrast<\/h3>\n
Create a program that increases the contrast in the image and saves it as ‘contrast.jpg’.<\/span><\/p>\n
Result:<\/strong><\/p>\n
\"\"<\/p>\n
 <\/p>\n\n<\/div>
7<\/h2>\n
\n\n
Challenge 7 – Rotated<\/h3>\n
Create a program that rotates the image by 180 degrees and saves it as ‘rotated.jpg’. You should not use the in-built functions for this.<\/span><\/p>\n
Result:<\/strong><\/p>\n
\"\"<\/p>\n
 <\/p>\n\n<\/div>
8<\/h2>\n
\n\n
Challenge 8 – Secret Message<\/h3>\n
Create a program that stores a secret message that the user inputs in the image using <\/span>steganography<\/b> and saves the image as ‘secret.jpg’.<\/span><\/p>\n
Write another program that decrypts the secret message.<\/span><\/p>\n
 <\/p>\n
 <\/p>\n
 <\/p>\n<\/div><\/div>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Example Code Here is some example code to help you get started! from PIL import Image im = Image.open(‘cat.jpg’) im2 = im.resize((400,300),Image.LANCZOS) #create a smaller copy im2.save(‘resize.jpg’) for x in range(im2.width): for y in range(im2.height): r,g,b = im2.getpixel((x,y)) r = r + 30 g = g + 30 b = b + 30 im2.putpixel((x, y),… Read More »Python Image Editing Challenges<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":""},"yoast_head":"\nPython Image Editing Challenges - Python<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Image Editing Challenges - Python\" \/>\n<meta property=\"og:description\" content=\"Example Code Here is some example code to help you get started! from PIL import Image im = Image.open('cat.jpg') im2 = im.resize((400,300),Image.LANCZOS) #create a smaller copy im2.save('resize.jpg') for x in range(im2.width): for y in range(im2.height): r,g,b = im2.getpixel((x,y)) r = r + 30 g = g + 30 b = b + 30 im2.putpixel((x, y),… Read More »Python Image Editing Challenges\" \/>\n<meta property=\"og:url\" content=\"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/\" \/>\n<meta property=\"og:site_name\" content=\"Python\" \/>\n<meta property=\"article:modified_time\" content=\"2022-10-14T11:31:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/learnlearn.uk\/python\/wp-content\/uploads\/sites\/4\/2022\/10\/cat.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/\",\"url\":\"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/\",\"name\":\"Python Image Editing Challenges - Python\",\"isPartOf\":{\"@id\":\"https:\/\/learnlearn.uk\/python\/#website\"},\"datePublished\":\"2022-10-14T11:12:24+00:00\",\"dateModified\":\"2022-10-14T11:31:59+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Python Unit Home\",\"item\":\"https:\/\/learnlearn.uk\/python\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Python Image Editing Challenges\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/learnlearn.uk\/python\/#website\",\"url\":\"https:\/\/learnlearn.uk\/python\/\",\"name\":\"Python\",\"description\":\"Programming\",\"publisher\":{\"@id\":\"https:\/\/learnlearn.uk\/python\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/learnlearn.uk\/python\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/learnlearn.uk\/python\/#organization\",\"name\":\"Python\",\"url\":\"https:\/\/learnlearn.uk\/python\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/learnlearn.uk\/python\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/learnlearn.uk\/python\/wp-content\/uploads\/sites\/4\/2019\/03\/LearnLearnLogowhite.png\",\"contentUrl\":\"https:\/\/learnlearn.uk\/python\/wp-content\/uploads\/sites\/4\/2019\/03\/LearnLearnLogowhite.png\",\"width\":710,\"height\":98,\"caption\":\"Python\"},\"image\":{\"@id\":\"https:\/\/learnlearn.uk\/python\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Python Image Editing Challenges - Python","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/","og_locale":"en_GB","og_type":"article","og_title":"Python Image Editing Challenges - Python","og_description":"Example Code Here is some example code to help you get started! from PIL import Image im = Image.open('cat.jpg') im2 = im.resize((400,300),Image.LANCZOS) #create a smaller copy im2.save('resize.jpg') for x in range(im2.width): for y in range(im2.height): r,g,b = im2.getpixel((x,y)) r = r + 30 g = g + 30 b = b + 30 im2.putpixel((x, y),… Read More »Python Image Editing Challenges","og_url":"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/","og_site_name":"Python","article_modified_time":"2022-10-14T11:31:59+00:00","og_image":[{"url":"https:\/\/learnlearn.uk\/python\/wp-content\/uploads\/sites\/4\/2022\/10\/cat.jpg"}],"twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/","url":"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/","name":"Python Image Editing Challenges - Python","isPartOf":{"@id":"https:\/\/learnlearn.uk\/python\/#website"},"datePublished":"2022-10-14T11:12:24+00:00","dateModified":"2022-10-14T11:31:59+00:00","breadcrumb":{"@id":"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/learnlearn.uk\/python\/python-image-editing-challenges\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Python Unit Home","item":"https:\/\/learnlearn.uk\/python\/"},{"@type":"ListItem","position":2,"name":"Python Image Editing Challenges"}]},{"@type":"WebSite","@id":"https:\/\/learnlearn.uk\/python\/#website","url":"https:\/\/learnlearn.uk\/python\/","name":"Python","description":"Programming","publisher":{"@id":"https:\/\/learnlearn.uk\/python\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/learnlearn.uk\/python\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/learnlearn.uk\/python\/#organization","name":"Python","url":"https:\/\/learnlearn.uk\/python\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/learnlearn.uk\/python\/#\/schema\/logo\/image\/","url":"https:\/\/learnlearn.uk\/python\/wp-content\/uploads\/sites\/4\/2019\/03\/LearnLearnLogowhite.png","contentUrl":"https:\/\/learnlearn.uk\/python\/wp-content\/uploads\/sites\/4\/2019\/03\/LearnLearnLogowhite.png","width":710,"height":98,"caption":"Python"},"image":{"@id":"https:\/\/learnlearn.uk\/python\/#\/schema\/logo\/image\/"}}]}},"rttpg_featured_image_url":null,"rttpg_author":{"display_name":"learnlearnadmin","author_link":"https:\/\/learnlearn.uk\/python\/author\/learnlearnadmin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"Example Code Here is some example code to help you get started! from PIL import Image im = Image.open('cat.jpg') im2 = im.resize((400,300),Image.LANCZOS) #create a smaller copy im2.save('resize.jpg') for x in range(im2.width): for y in range(im2.height): r,g,b = im2.getpixel((x,y)) r = r + 30 g = g + 30 b = b + 30 im2.putpixel((x, y),… Read…","_links":{"self":[{"href":"https:\/\/learnlearn.uk\/python\/wp-json\/wp\/v2\/pages\/1338"}],"collection":[{"href":"https:\/\/learnlearn.uk\/python\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/learnlearn.uk\/python\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/learnlearn.uk\/python\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/learnlearn.uk\/python\/wp-json\/wp\/v2\/comments?post=1338"}],"version-history":[{"count":7,"href":"https:\/\/learnlearn.uk\/python\/wp-json\/wp\/v2\/pages\/1338\/revisions"}],"predecessor-version":[{"id":1356,"href":"https:\/\/learnlearn.uk\/python\/wp-json\/wp\/v2\/pages\/1338\/revisions\/1356"}],"wp:attachment":[{"href":"https:\/\/learnlearn.uk\/python\/wp-json\/wp\/v2\/media?parent=1338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}