scale such that the height of the layer will remain constant. Keep Width will constrain the scale such that the width of the layer will remain constant. Keep Aspect will constrain the scale such as the the Height/Width ratio of the layer will remain constant. GNU Image Manipulation Program 207 / 653 12.4.5.5 The Scaling Information dialog window Figure 12.55: The Scaling Information dialog window La photographs, the linear mode is most commonly useful. For images that contain substantial areas of constant color, though, a linear histogram will often be dominated by a single bar, and a logarthmic histogram

slider is set to a negative value the width of the brush will vary while the height of the brush is constant. If the slider is set to a positive value only the height of the brush will vary. Velocity: (mouse) frame, this option will constrain the scale such as the Height/Width ratio of the layer will remain constant. Note that this doesn’t work with border handles. Note also that it toggles the linking chain in photographs, the linear mode is most commonly useful. For images that contain substantial areas of constant color, though, a linear histogram will often be dominated by a single bar, and a logarithmic histogram

have to travel a long way with the mouse to access the different function menus. This results in a constant clicking, dragging and moving the mouse up and down, to per- form even the simplest task (which your selection: • Linear: This is the default function, and it causes the color to change at a constant rate from one endpoint to another. • Curved: Causes the end sections’ colors to change at a different how you want to apply it, by selecting constant or variable. When you have made your choice, a filter dialog will pop up asking for values. If you chose constant, the dialog will appear only once, and