FilterType (PNGJ 2.1.1-SNAPSHOT API)

java.lang.Object
- java.lang.Enum<FilterType>
- - ar.com.hjg.pngj.FilterType

All Implemented Interfaces:

Serializable, Comparable<FilterType>
```
public enum FilterType
extends Enum<FilterType>
```
Internal PNG predictor filter type Negative values are pseudo types, actually global strategies for writing, that (can) result on different real filters for different rows

Enum Constant Summary

Enum Constants
Enum Constant and Description
`FILTER_ADAPTIVE_FAST` Adaptative strategy, skipping many rows - more speed
`FILTER_ADAPTIVE_FULL` Adaptative strategy, sampling each row, or almost
`FILTER_ADAPTIVE_MEDIUM` Adaptive strategy, skippping some rows
`FILTER_AGGRESSIVE` Deprecated. use #FILTER_ADAPTIVE_FAST
`FILTER_AVERAGE` AVERAGE filter
`FILTER_CYCLIC` Uses all fiters, one for lines, cyciclally.
`FILTER_DEFAULT` Default strategy: select one of the standard filters depending on global image parameters
`FILTER_NONE` No filter.
`FILTER_PAETH` PAETH predictor
`FILTER_PRESERVE` Preserves the filter passed in original row.
`FILTER_SUB` SUB filter (uses same row)
`FILTER_SUPER_ADAPTIVE` Experimental
`FILTER_UNKNOWN` Not specified, placeholder for unknown or NA filters.
`FILTER_UP` UP filter (uses previous row)
`FILTER_VERYAGGRESSIVE` Deprecated. use #FILTER_ADAPTIVE_MEDIUM or #FILTER_ADAPTIVE_FULL

Field Summary

Fields
Modifier and Type Field and Description

int val

Fields
Modifier and Type	Field and Description
`int`	`val`

Method Summary

Methods
Modifier and Type	Method and Description
`static FilterType[]`	`getAllStandard()` Returns all "standard" filters
`static FilterType[]`	`getAllStandardExceptNone()`
`static FilterType[]`	`getAllStandardNoneLast()`
`static FilterType`	`getByVal(int i)`
`static boolean`	`isAdaptive(FilterType fy)`
`static boolean`	`isValidStandard(FilterType fy)`
`static boolean`	`isValidStandard(int i)` only considers standard
`static FilterType`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static FilterType[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - FILTER_NONE
```
public static final FilterType FILTER_NONE
```
    No filter.
  - FILTER_SUB
```
public static final FilterType FILTER_SUB
```
    SUB filter (uses same row)
  - FILTER_UP
```
public static final FilterType FILTER_UP
```
    UP filter (uses previous row)
  - FILTER_AVERAGE
```
public static final FilterType FILTER_AVERAGE
```
    AVERAGE filter
  - FILTER_PAETH
```
public static final FilterType FILTER_PAETH
```
    PAETH predictor
  - FILTER_DEFAULT
```
public static final FilterType FILTER_DEFAULT
```
    Default strategy: select one of the standard filters depending on global image parameters
  - FILTER_AGGRESSIVE
```
public static final FilterType FILTER_AGGRESSIVE
```
    Deprecated. use #FILTER_ADAPTIVE_FAST
  - FILTER_VERYAGGRESSIVE
```
public static final FilterType FILTER_VERYAGGRESSIVE
```
    Deprecated. use #FILTER_ADAPTIVE_MEDIUM or #FILTER_ADAPTIVE_FULL
  - FILTER_ADAPTIVE_FULL
```
public static final FilterType FILTER_ADAPTIVE_FULL
```
    Adaptative strategy, sampling each row, or almost
  - FILTER_ADAPTIVE_MEDIUM
```
public static final FilterType FILTER_ADAPTIVE_MEDIUM
```
    Adaptive strategy, skippping some rows
  - FILTER_ADAPTIVE_FAST
```
public static final FilterType FILTER_ADAPTIVE_FAST
```
    Adaptative strategy, skipping many rows - more speed
  - FILTER_SUPER_ADAPTIVE
```
public static final FilterType FILTER_SUPER_ADAPTIVE
```
    Experimental
  - FILTER_PRESERVE
```
public static final FilterType FILTER_PRESERVE
```
    Preserves the filter passed in original row.
  - FILTER_CYCLIC
```
public static final FilterType FILTER_CYCLIC
```
    Uses all fiters, one for lines, cyciclally. Only for tests.
  - FILTER_UNKNOWN
```
public static final FilterType FILTER_UNKNOWN
```
    Not specified, placeholder for unknown or NA filters.
- Field Detail
  - val
```
public final int val
```
- Method Detail
  - values
```
public static FilterType[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (FilterType c : FilterType.values())
    System.out.println(c);
```
    Returns:
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static FilterType valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    name - the name of the enum constant to be returned.
    
    Returns:
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - getByVal
```
public static FilterType getByVal(int i)
```
  - isValidStandard
```
public static boolean isValidStandard(int i)
```
    only considers standard
  - isValidStandard
```
public static boolean isValidStandard(FilterType fy)
```
  - isAdaptive
```
public static boolean isAdaptive(FilterType fy)
```
  - getAllStandard
```
public static FilterType[] getAllStandard()
```
    Returns all "standard" filters
  - getAllStandardNoneLast
```
public static FilterType[] getAllStandardNoneLast()
```
  - getAllStandardExceptNone
```
public static FilterType[] getAllStandardExceptNone()
```

Enum FilterType

Enum Constant Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

FILTER_NONE

FILTER_SUB

FILTER_UP

FILTER_AVERAGE

FILTER_PAETH

FILTER_DEFAULT

FILTER_AGGRESSIVE

FILTER_VERYAGGRESSIVE

FILTER_ADAPTIVE_FULL

FILTER_ADAPTIVE_MEDIUM

FILTER_ADAPTIVE_FAST

FILTER_SUPER_ADAPTIVE

FILTER_PRESERVE

FILTER_CYCLIC

FILTER_UNKNOWN

Field Detail

val

Method Detail

values

valueOf

getByVal

isValidStandard

isValidStandard

isAdaptive

getAllStandard

getAllStandardNoneLast

getAllStandardExceptNone