Image control tool is designed for resizing, rotating, mirroring, flipping and other similar actions. There is also possibility of cloning, rotating and resizing the part of picture, depending on brush characteristics. Conversions to grayscale and negative image as well as cut and crop actions are included. Clipboard manipulation is also available.

Marker action is used to mark a region of picture by applying some shape or simple brush movement. After marking the ROI, there are several possibilities: you can clone that part of image, resize and rotate. If some brush action is applied prior to entering Image Control actions, region is already marked through mask and all astions can be applied without marking again.

Marquee action is used to mark a region of picture by applying rectangular ROI with animated line. Brush type does not apply to this kind of selection, ROI is solid. After performing some action with marked area, a new masked ROI is created.

Clone action is used to copy the selected region to other part of image. How this region is copied depends on brush characteristics used to select the region. if brush with falloff effect is used and some shape is selected, the feather part of ROI depends on brush size.

Resize action is used to resize s the selected region of image. Resizing amount depends on mouse movement. If mouse is moved apart from the center of ROI, the region is stretched in y direction. Inverse movement produces region squeezing in y direction. Also, if mouse is moved downward, the region is stretched in x direction. Inverse movement produces region squeezing in x direction. Resized image is copied onto image according to the same brush rules described in Clone action.

Rotate action is used to rotate the selected region of image. Rotation direction depends on mouse movement. Rotated image is copied back to image according to the same brush rules described in Clone action

Paste action is used to paste an image from clipboard onto existing image. Pressing left mouse button and moving the cursor you can choose where to place an image from clipboard.

Paste BCT action is used to paste an image from clipboard onto existing image with background color transparency (BCT). This means that pixels that have color equal to background color are transparent. BCT tolerance is specified by edit field and spinner button on the bottom of this panel.

Clear action simply extracts out the selected part of image filling the hole with background color. The amount of color filling depends on brush characteristics used to mark the ROI.

Clear out action simply extracts out the part of picture not selected by marker, i.e. it performs inverse cut action. Extracted part of image is filled with background color taking care of brush characteristics.

Cut action is similar to cut action, but prior to clearing a part of image, this part is copied to clipboard.

Copy action copies the part of image (current selection) to clipboard.

Paste into action copies an image from clipboard into current selection. Best resizing interpolation is performed depending on image size.

Paste into BCT action copies an image from clipboard into current selection with background color transparency. BCT tolerance can be set in edit field on the bottom of this panel.

Flip action, mirrors the image around the y axis passing through the center of the image.

Mirror action, mirrors the image around the x axis passing through the center of the image.

Resize action is used to resize entire image to some desired width and height. After clicking this button, another panel pops up. In this panel, you can specify new width and height. You can specify to maintain aspect ratio (proportional resizing) or not, and you can also choose the quality of resized picture, by selecting various interpolating methods. Super-sampling interpolation method can be selected only for squeezed images. If you select this method for stretched image, nearest neighbor method will be applied.

Rotate action is used to rotate entire image around some arbitrary point. After pressing this button, another panel pops up. In this panel, you can specify coordinates of center of rotation, angle of rotation and division factor. Resulting angle is ratio between angle and division factor. After selecting interpolation method, press OK button and image will be rotated. In this action, image is not resized while rotated, so some parts of image may be clipped away. To ensure that rotated image is entirely visible, first enlarge canvas and then apply rotation.

Canvas action can enlarge the canvas of the image or perform margins cut. Enlarged canvas is filled with background color. After pressing this button, another panel pops up. In this panel, you can specify a new size of canvas and the position of original image onto new and enlarged canvas. Also, you can cut off margins of your image. In this way, you can discard non-interesting border part of image.

Tile action is used to perform image tiling. After pressing this button another panel pops up. There you can specify the horizontal and vertical tiling factor, i.e. how much times image will be repeated in horizontal and vertical direction.

Negative action creates negative image by inverting the values of pixels colors.

Grayscale action is used to perform conversion from color image to grayscaled image. After pressing this button another panel pops up. There you can specify the intensity at which colors are combined via color twist matrix. Higher the slider value, brighter will be the converted picture. To return slider to default value, click on the slider caption (Grayscale).

BC Tolerance is used to specify background color transparency tolerance used in Paste BCT and Paste into BCT actions. If tolerance is set to zero, pixels that have color exactly equal to background color will act as transparent. If tolerance is greater then zero, color difference is calculated (cur_pixel_color - bc_color). If this difference is less or equal to given tolerance, pixel is treated as transparent.

Copy to clipboard checkbox is used to specify if Windows clipboard is used for functions such as: copy, cut, paste, etc. If this box is checked, clipboard is used, otherwise Pixopedia internal copy buffer is used. Internal buffer has one additional feature. ROI is copied into internal buffer together with mask, while with clipboard, this is not a case. If you want to use copied ROI inside Pixopedia it's recomanded to use internal buffer. If you want to use same ROI in other program use Windows clipboard.

NOTE:
Resultant image is NOT affected by any previously set Global parameters.

Example of ImgCtrl usage. Original picture is on the left. On the right picture, ImgCtrl actions are applied. Click on picture to enlarge.