Winforms Image Processing

An application created in Winforms under C# for processing images. Allows applying various function and convolution filters among other functionalities.

Version specifications

Version v1.0

The initial version is specified by the following requirements:

• Loading of a selected image file and displaying it in the application window

• Applying selected filters to the loaded image and displaying result beside or in place of original image

• Combining multiple filters on top of each other

• Saving result image to a file

• Returning filtered image back to its original state without reloading the file

• Implementation of following function filters - with fixed parameters easily modifiable from the source code:

  • inversion,
  • brightness correction,
  • contrast enhancement,
  • gamma correction.

• Implementation of following convolution filters

  • box blur,
  • Gaussian blur
  • sharpen,
  • edge detection
  • emboss

  Additionally, functionalities of convolution filters are extended by:

• Separate area displaying rectangular grid with editable convolution filter kernel coefficients

• Independent selection of numbers of kernel columns and rows. Values can be limited to an odd numbers from range [1, 9]

• Editable field with filter divisor

• Option to automatically compute divisor (sum of coefficients or 1 if the sum is 0)

• Editable field with filter offset value

• Selection of kernel anchor point, i.e. element of a grid which overlaps with currently processed pixel

• Loading and editing existing filters, including predefined convolution filters specified in the common part

• Saving created or modified filters in an application and applying them to the image