TdxGPImageCodecJPEG.Quality Property
Specifies the JPEG quality level (as a percentage) for image compression.
Declaration
class property Quality: Cardinal read; write;Property Value
| Type | Description |
|---|---|
| Cardinal | The JPEG quality level. This property value can be within the range between |
Remarks
The JPEG image format uses a lossy compression algorithm that trades quality for compression. The compression rate is measured as a percentage of the base quality level. Assign a percentage value to the Quality property to adjust image quality for saved JPEG images.
Property Values
| Value | Description |
|---|---|
100% |
Indicates that an image save operation results in minimum quality loss. |
90% or higher |
This compression rate corresponds to “high quality” JPEG images. |
80 – 90% |
Medium-quality JPEG images have compression rates within this range. |
70 – 80% |
This value range corresponds to “low quality” JPEG images. |
70% and lower |
Low compression rates correspond to very low quality JPEG images. |
Property Setter Behavior
The Quality property setter fits an assigned value into the range between 0 and 100.
Default Value
The Quality property’s default value is DefaultQuality.
The default Quality property value corresponds to the compression rate of 75%.
See Also