Friday, January 18, 2019

Making Selections Based on Color and Focus

Before
After

I was able to change the the color of the toothbrush as well as the background into a more saturated color by selecting the desired shared color within the entirety of the image. This in turn is able to change the tone of the photograph taken as I am able to darken or lighten colors that I want as well as being able to focus in on certain subjects within the image. I was able to make the toothbrush stand out more by changing the color of the tooth brush and the toothpaste, draining its color almost entirely, whilst the background adds  more emphasis on the subject of the photo. This technique can be used as a means to change large portions of background colors to either lighten or darken the photo, thus changing how colorful or monotone it is.

Using Select and Mask to Refine a Hard Edge Selection


Before
After
Using Select and Mask, I was able to isolate the squash and change its color into a brighter yellowish shade of yellow.  This process makes it easier to change colors using the quick select tool as well as the masking tool to select as much of an image as accurately as possible. This technique can be used in the future if there is a smaller, more particular object you want to edit it's color with within a crowded image, such as a forest, or a city block.    

Friday, January 11, 2019

Selecting Subjects


Before

After
;This week I learned about selecting objects and editing them into other photographs. I was able to use some of my previous knowledge on isolating an object in a photograph (see previous blog). I was then able to use smooth soft edges from his hair in order to prevent unwanted parts of the background. I then used another photograph I took and added it as a background image to complete the photo. This week's practice makes me want to learn about how to shade in objects in order for them to blend in with the photo more seamlessly.

Wednesday, January 9, 2019

Using Marquee and Lasso Tools

Using the lasso tool, I was able to create body parts for the character above. In order to create y character, I made sure to use multiple layers if I wanted to move any body parts or erase certain parts of it that didn't look right. I am able to  use these tools in the future if I want to edit the characters or photos using drawings of my characters, I can use the lasso and marquee tool to manipulate certain parts of the photo I want to edit.

Friday, January 4, 2019

Soft Edges

Before 
After
The photograph of the teddy bear after is a demonstration of how I utilized the select and mask feature to isolate the bear from the background, maintaining it's individual hairs on the object. This process was fairly easy once I understood what was needed to do as I was able to select and deselect  the object of interest. Masking the rest of the background was also fairly simple, brushing over the edges, softening it in order for it to make the object less rigid. I will definitely use this technique in my future works.

Here is the MATLAB code for the detect path block we need for using the linescan camera to direct the autonomous car on the track.