دليل مرجعي
110
ﺓﺭﺎﺘﺨﻤﻟﺍ ﺕﺍﺭﺎﻃﻹﺍ ﻆﻔﺣ
:ﺔﺘﺑﺎﺛ JPEG ﺓﺭﻮﺻ ﺔﻐﻴﺻ ﻲﻓ ﺭﺎﺘﺨﻤﻟﺍ ﺭﺎﻃﻹﺍ ﻦﻣ ﺔﺨﺴﻧ ﻆﻔﺤﻟ
.ﺕﺍﺭﺎﻃﻹﺍ ﺪﺣﺃ ﺮﺘﺧﺍﻭ ﻢﻠﻴﻔﻟﺍ ﺽﺮﻋﺍ
1
ﻚﻌﻗﻮﻣ ؛106 ﺔﺤﻔﺻ ﻲﻓ ﻑﻮﺻﻮﻣ ﻮﻫ ﺎﻤﻛ ﻢﻠﻴﻔﻟﺍ ﺽﺮﻋﺍ
ﻂﻳﺮﺷ ﺔﻄﺳﺍﻮﺑ ﻪﻨﻣ ﺪﻛﺄﺘﻟﺍ ﻦﻜﻤﻳ ﻢﻠﻴﻔﻟﺍ ﻲﻓ ﻲﺒﻳﺮﻘﺘﻟﺍ
ﺐﻏﺮﺗ ﻱﺬﻟﺍ ﺭﺎﻃﻹﺍ ﺪﻨﻋ
ﹰ
ﺎﺘﻗﺆﻣ ﺽﺮﻌﻟﺍ ﻒﻗﻭﺃ .ﻢﻠﻴﻔﻟﺍ ﻡﺪﻘﺗ
.ﻪﺨﺴﻧ ﻲﻓ
?
.ﻢﻠﻴﻔﻟﺍ ﺮﻳﺮﺤﺗ ﺕﺍﺭﺎﻴﺧ ﺽﺮﻋﺍ
2
.ﻢﻠﻴﻔﻟﺍ ﺮﻳﺮﺤﺗ ﺕﺍﺭﺎﻴﺧ ﺽﺮﻌﻟ (
L
)
A
ﺭﺰﻟﺍ ﻰﻠﻋ ﻂﻐﺿﺍ
(
L
)
A
ﺭﺰﻟﺍ
.ﺭﺎﺘﺨﻤﻟﺍ ﺭﺎﻃﻹﺍ ﻆﻔﺣ ﺮﺘﺧﺍ
3
.
J
ﻂﻐﺿﺍﻭ ﺭﺎﺘﺨﻤﻟﺍ ﺭﺎﻃﻹﺍ ﻆﻔﺣ ﻞﻠﻇ
?
.ﺔﺘﺑﺎﺛ ﺓﺭﻮﺻ ﺔﺨﺴﻧ ﺀﺎﺸﻧﺈﺑ ﻢﻗ
4
.ﻲﻟﺎﺤﻟﺍ ﺭﺎﻃﻹﺍ ﻦﻣ ﺔﺘﺑﺎﺛ ﺔﺨﺴﻧ ﺀﺎﺸﻧﻹ
1
ﻂﻐﺿﺍ
?
.ﺔﺨﺴﻨﻟﺍ ﻆﻔﺣﺍ
5
ﺓﺩﻮﺠﺑ JPEG ﺔﻐﻴﺼﺑ ﺔﺨﺴﻧ ﺀﺎﺸﻧﻹ
J
ﻂﻐﺿﺍﻭ ﻢﻌﻧ ﻞﻠﻇ
ﺕﺎﻣﻮﻠﻌﻣ ﺍﺪﻋ ﺎﻤﻴﻓ .ﺭﺎﺘﺨﻤﻟﺍ ﺭﺎﻃﻹﺍ ﻦﻣ (42
0
) ﺓﺪﻴﺟ
ﺓﺭﺎﺷﻹﺍ ﻢﺘﺗ ،(119
0
) ﺔﺤﻔﺼﻟﺍ "ﻂﻘﻓ ﺓﺭﻮﺼﻟﺍ" ﺓﺭﻮﺼﻟﺍ
ﺽﺮﻋ ﺀﺎﻨﺛﺃ
f
ﺰﻣﺮﻟﺍ ﻝﻼﺧ ﻦﻣ ﻡﻼﻓﻷﺍ ﻦﻣ ﺔﺘﺑﺎﺜﻟﺍ ﺭﻮﺼﻟﺍ ﻰﻟﺇ
.ﻞﻣﺎﻛ ﺭﺎﻃﺇ
?
ﺭﺎﺘﺨﻤﻟﺍ ﺭﺎﻃﻹﺍ ﻆﻔﺣ
A
ﺔﺘﺑﺎﺜﻟﺍ ﺭﻮﺼﻟﺍ .ﺎﻬﺤﻴﻘﻨﺗ ﻦﻜﻤﻳ ﻻ ﺭﺎﺘﺨﻤﻟﺍ ﺭﺎﻃﻹﺍ ﻆﻔﺣ ﺭﺎﻴﺨﻟﺍ ﺔﻄﺳﺍﻮﺑ ﺎﻫﺅﺎﺸﻧﺇ ﻢﺗ ﻲﺘﻟﺍ JPEG ﺔﻐﻴﺼﺑ ﺔﺘﺑﺎﺜﻟﺍ ﻡﻼﻓﻷﺍ
.(119
0
) ﺓﺭﻮﺼﻟﺍ ﺕﺎﻣﻮﻠﻌﻣ ﺕﺎﺌﻓ ﺾﻌﺑ ﺎﻬﺼﻘﻨﻳ JPEG ﺔﻐﻴﺼﺑ